Author, A. A.; Author, B. B. Book Title (italics), Edition (if any); Publisher: Place of Publication, Year; Pagination.
Dill, K. A.; Bromberg, S. Molecular Driving Forces: Statistical Thermodynamics in Chemistry and Biology; Garland Science: New York, 2003.
Author, A. A; Author, B. B; Author, C. C. Title of Article. Journal Abbreviation (italics) [Online if online] Year (boldface), Volume (italics), Pagination.
Borman, S. Protein Sequencing For The Masses. Chem. Eng. News [Online] 2004, 82, pp 22-23.
The standard list of journal abbreviations is published in CASSI, the Chemical Abstracts Service Source Index.
Author, A. A. (if any). Title of Site. URL (accessed date), other identifying information. (No need to include URL of subscription sites).
ChemFinder.Com. http://chemfinder.cambridgesoft.com (accessed July 14, 2004).
See UC Berkeley Library's Online Guide for more examples