For a Journal Article
Breuer, H.; Cimarusti, C. M.; Denzen, T.; Koster, W. H.; Slusarchyk, W. A.; Treuner, U. D. J. Antimicrob. Ag. Chemother. 1981, 8, 21-28.
The number following the year is the volume and the pages are inclusive, regardless of how many they actually used. All authors are listed, even if there are very many. The abbreviation for the journal in question can be found in the journal itself or in Chemical Abstracts. If you want, I’ll give you a list of the most common ones.
For a Book
Zubrick, James W. The Organic Chem Lab Survival Manual: A Student’s Guide to Techniques, 3rd ed., John Wiley and Sons, Inc., New York, 1992, pp. 25-27.
For an Edited Book
Uri, J. V.; Actor, P. in Antibiotics Containing the Beta-Lactam Structure, Part II; Demain, A. L.; Solomon, N. A., eds; Springer-Verlag, Berlin, 1983; pp. 399-471.
P.S. There’s a piece of software called EndNote that will do all of the font changing for you. It will also put the numbers in, renumber if you add or delete a reference, and format your reference list at the end. It’s really nice and not too expensive.