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Marine Ecosystems

Encyclopedias and Reference Books / eBooks

Search a large collections of reference ebooks simultaneously in these databases: Gale Virtual Reference Library. Also: Britannica Academic Online contains the complete Encyclopedia Britannica plus reliable websites and full-text journal access.

Taft Online Subscription Databases

  • Britannica Academic Online The complete Encyclopedia Britannica, plus recommended web links and full-text journal articles
  • Britannica ImageQuest Access millions of images which are rights-cleared for non-commercial, educational use
  • Classroom Video On Demand Provides access to thousands of full-length videos and clips on core-curriculum topics
  • Gale Virtual Reference Library Search hundreds of reference ebooks all together or one at time. Links to these books are also available through our online catalog.
  • Global Issues in Context News, perspectives, video, reference, country information, primary source documents, and statistics on issues of global importance
  • GreenFILE EBSCO's database dedicated to the human impact on the environment, containing content from journals, books, reports, and government documents.
  • National Geographic Virtual Library Features the entire magazine archive 1888 - present
  • Science in Context Topic overviews, experiments, biographies, and links to quality websites, as well as coverage of the latest scientific developments in over 200 magazines and academic journals.
  • Science Reference Center Contains full text for hundreds of science encyclopedias, reference books, periodicals and other reliable sources. Also includes the Science Image Collection, a database of more than 270,000 high-quality images.
  • Today's Science Designed to connect the classroom to real world discoveries, explaining important developments in biology, chemistry, the environment, space, physics, and technology


From the Wikipedia essay on Academic use: "Wikipedia is not a reliable source for academic writing or research." 

To find reliable websites:

  • SweetSearch, A Search Engine for Students searches only credible websites approved by research experts. Note: ignore first group of results labeled Ad 
  • Britannica Academic Online includes links to reliable websites.
  • Limit your search to reliable domains by including the phrase site:gov OR site:edu : .gov for U.S. government agencies and .edu for educational institutions in the U.S.  

In addition to the database Britannica ImageQuest, you can use these sites to find images:

Creating Your Bibliography

A statement from MIT Libraries on why we cite our sources: To show your reader you've done proper research by listing sources you used to get your information. To be a responsible scholar by giving credit to other researchers and acknowledging their ideas. To avoid plagiarism by quoting words and ideas used by other authors. To allow your reader to track down the sources you used by citing them accurately in your paper by way of footnotes, a bibliography or reference list.

You can use Bibme, an electronic citation generator, to create your APA citations. Note: Most of our Online Subscription Databases provide a citation you can copy and paste into your bibliography if your teacher says you may do this.

  • To cite encyclopedia and reference source articles: under Other choose Encyclopedia article and Manual entry mode. Choose In print or Online database.
  • To cite journal articles found in a Taft online subscription database: choose Journal and Manual entry mode and Online database.
  • To cite a website (Famous Scientists, for example), click on Website and choose Manual entry mode to get started.
  • To cite an image, under Other choose image type (photograph, for example) and then in print,website or online database
  • For source types other than Journal, Website, Book, and Video, choose Other.

Tip: Create your citations and save them in a Word document or a Google Doc. You can add more sources to your bibliography by copying and pasting the new citations into your existing bibliography.