The complete American Chemical Society (ACS) Style Guide (3rd Edition, 2006) is available online at the links below. It is also available in print at Waterfield Library located in the bookcases next to the Information Desk.
A typical ACS journal citation follows the following basic style:
Bunnett, J. F.; Kearley, F. J., Jr.; J. Org. Chem., 1971, 36, 184-186.
Sometimes you will see the title given between the author names and the journal abbreviation, but usually not. This is because titles can be very long and include non-standard symbols or fonts. See Chapter 14 of the ACS Style Guide for more information.