For the details of documenting sources, we encourage you to consult a published style manual directly rather than using secondary sources:
ACS Style – American Chemical Society
http://pubs.acs.org/page/books/styleguide/index.html
APA Style – American Psychological Association
http://www.apastyle.org/learn/tutorials/basics-tutorial.aspx
also see APA @ Purdue OWL (Online Writing Lab)
http://owl.english.purdue.edu/owl/resource/560/01/
http://owl.english.purdue.edu/owl/resource/583/01/
Chicago Style – The Chicago Manual of Style
http://www.chicagomanualofstyle.org/tools_citationguide.html
CSE – Council of Science Editors Style
http://www.councilscienceeditors.org/publications/scientific-style-and-format/
Turabian Style (Kate L. Turabian)
http://www.press.uchicago.edu/books/turabian/turabian_citationguide.html
MLA Style – Modern Language Association of America
http://www.mla.org/style
also see MLA @ Purdue OWL (Online Writing Lab)
http://owl.english.purdue.edu/owl/resource/747/01/