CBE Internet references

In general, CBE references to Internet sources follow CBE format with the addition of information about the source's URL and the retrieval date （important because web documents are by their nature dynamic）. For formatting the examples below, I have followed Andrew Harnack and Eugene Kleppinger, Online! A Reference Guide to Using Internet Sources （New York: Bedford / St. Martin's, 2000）.

E1. Web site
E2. Article in an online journal
E3. Abstract
E4. Newspaper article
E5. Government publication
E6. Forum or conference posting
E7. Email

　　E1. Web site

　　Reference

　　Dupont Corp. 2000. Dupont biotechnology. Accessed 2000 Sept. 12.

　　E2. Article in an online journal

　　Reference

　　Zhan D, Holmes WF, Shujian W, Soprano DR, Soprano KJ. 2000. Retinoids and ovarian cancer. Journal of Cellular Physiology 185（1）:1-20. Accessed 2000 Oct 3.

　　E3. Abstract

　　Reference

　　Kidd AH, Garwicz D. 1995 Feb 1. Human and simian adenoviruses: phylogenetic inferences from analysis of VA RNA genes [abstract]. In Virology 207（1）:32-45. IDEAL database Accessed 2000 Sept 12.

　　E4. Newspaper article

　　Reference

　　[Anonymous.] 2000 Sept. 29. 11,000 species said to face extinction, with pace quickening. New York Times. . Accessed 2000 Oct 1.

　　E5. Government publication

　　Reference

　　U.S. Environmental Protection Agency. 2000 Oct. 1. Resources for promoting global business principles and best practices: a directory of people, organizations and web sites. . Accessed 2000 Oct 1.

　　E6. Forum or conference posting

　　Reference

　　Jensen W. 2000 Apr. 17. Re: question about grading essays. Accessed 2000 July 18.

　　E7. Email

　　Reference

　　Hubley M. 2000 Aug. 17. Re: biology citation style [Personal email].