ACS Style Guide
Reference QD 8.5 .A25 2006
A copy is also available in the Chemistry Department

Online version available from ACS

Quick Guide: ACS Citation Style (PDF) by Penn State Univeristy Libraries

ACS Style Guide by Williams College Library

American Chemical Society (ACS) Citation Style by University of the Sciences

CAS Source Index (CASSI)

Identifies journal titles and abbreviations for publications indexed by CAS since 1907. Search by Title, Abbreviation, CODEN, ISBN, or ISSN.