Guides to Citation Styles Available Online

APA Online - Electronic Reference Formats
http://www.apastyle.org/elecref.html 

Online! Using Principles of APA Style to Cite and Document Sources
http://www.bedfordstmartins.com/online/cite6.html  

Using American Psychological Association (APA) Format (updated to 5th Edition)
http://owl.english.purdue.edu/handouts/research/r_apa.html

APA (American Psychological Association) Citation Style Guide
http://www.bucknell.edu/img/assets/6535/apa.pdf 

Online! Using CBE Style to Cite and Document Sources
http://www.bedfordstmartins.com/online/cite8.html 

National Library of Medicine Recommended Formats for Bibliographic Citation
http://www.nlm.nih.gov/pubs/formats/internet.pdf  

Online! Using Chicago Style to Cite and Document Sources
http://www.bedfordstmartins.com/online/cite7.html 

Chicago Citation and Format Style Guide
http://www.bucknell.edu/img/assets/6535/chicago.pdf 

Turabian Citation and Format Style Guide
http://www.bucknell.edu/img/assets/6535/turabian.pdf 

MLA (Modern Language Association) Citation Style Guide
http://www.bucknell.edu/img/assets/6535/mla.pdf 

Using Modern Language Association (MLA) Format
http://owl.english.purdue.edu/handouts/research/r_mla.html 

ISO 690-2 (International Organization for Standards)
http://www.collectionscanada.ca/iso/tc46sc9/standard/690-2e.htm 

Electronic References & Scholarly Citations of Internet Sources
http://www.spaceless.com/WWWVL/
 
Robert E. Kennedy Library - Suggested Formats for Citing Web Pages (various styles)
http://www.lib.calpoly.edu/research/guides/pdfs/web.pdf

HTTP://LIBRARY.TAMU.EDU/HANDOUTS

Anthropology

American Anthropology Association Style Guide (Chicago
http://www.aaanet.org/pubs/style_guide.pdf  

Business

Formats for the Citation of Electronic Sources in Business Writing (APA; MLA)
http://www.westwords.com/guffey/documentation.html 

Government Information

Citing Government Information Sources Using MLA Style (MLA)
http://www.library.unr.edu/depts/bgic/guides/government/cite.html 

Uncle Sam - Brief Guide to Citing Government Publications (Chicago)
http://exlibris.memphis.edu/resource/unclesam/citeweb.html 

History

A Brief Citation Guide for Internet Sources in History and the Humanities (Turabian)
http://www2.h-net.msu.edu/about/citation 

Citing Electronic Information in History Papers (Turabian)
http://cas.memphis.edu/~mcrouse/elcite.html 

Humanities

A Brief Citation Guide for Internet Sources in History and the Humanities (Turabian)
http://www2.h-net.msu.edu/about/citation 

Legal

Introduction to Basic Legal Citation (LII, 2003 ed.)
http://www.law.cornell.edu/citation/ 

Medicine

Uniform Requirements for Manuscripts Submitted to Biomedical Journals: Writing andEditing for Biomedical Publication (International Committee of Medical Journal Editors [ICMJE] – November 2003)
http://www.icmje.org/ 

Guidelines for Citing the Genome Database (Human Genome Project)
http://gdbwww.gdb.org/gdb/cite.html  

Sciences

Council of Science Editors – Using CBE Style to Cite and Document Sources (CBE)
http://www.councilscienceeditors.org/publications/style.cfm 

Social Sciences

McGill Humanities and Social Sciences Library: Citation Style for Social Science Term
Papers (Turabian) http://www.library.mcgill.ca/human/subguide/pdf/turab.pdf 

Special Format Material

Film, Legal Materials, Maps, Photographs, Recorded Sound, etc. (MLA; Turabian)
http://memory.loc.gov/learn/start/cite/index.html