Citing

• APA | MLA | Chicago | Turabian
• Citation Builder (North Carolina State University)
• Citing sources for a bibliography (APA, Chicago, MLA, Turabin, CSE) (Duke University)
  Citing Sources within your paper (APA,Chicago,MLA, Turabin, CSE) (Duke University)
  APA Style Tutorial
•  EasyBib (The Automatic Bibliography and Citation Maker)  
• Citation Styles by Disciplines
  CSE/CBE (Council of Science Editors)
  AAA Style (American Anthropological Association)
  ACS Style (American Chemical Society)
  ACS Quick Guide (American Chemical Society Quick Guide)
  AGU style (American Geophysical Union)
  AIP style (American Institute of Physics)
  AMA style (American Medical Association)
  APSA style  (American Political Science Association)
  ASA style  (American Sociological Association)
  ASA style (American Statistical Association)
  GSA style (Geological Society of America)
  NLM style (National Library of Medicine)
  SSSA style (Soil Science Society of America)
• Citing Online/Electronic Sources
  How to cite electronic sources (Library of Congress) (websites, illustrations, films, maps, photographs, sound recordings, texts, etc.)
  Online: a reference guide to using Internet sources (Bedford/St. Martin's)
• Government Documents Citation Guides
  Government Publications style (Chicago/Turabian)
  DocsCite (APA/MLA)
  Congressional Publications
  Census Information
  Legal style