The latest print edition of the Publication Manual of the American Psychological Association is available in most of the University Libraries reference collections under the call number BF 76.7 .P83.
The Bluebook: A Uniform System of Citation is the standard for citing legal information correctly. You can find a print copy behind the Central Reference Desk under the call number KF 245 .B58 19th (Ref).
You might also check out the following Web sites:
The Writing Lab at Purdue University does a superb job of helping to guide students in the use of the writing style guides. Be sure and visit their site once you have put your own citations into the proper format to see check your work.