APA follows the guidelines for legal citations in the United States as outlined in The Bluebook. To cite a statute in a state code and its explanation:
Name of Act, Title Source § Section Number (Year). URL if available
Individuals With Disabilities Education Act, 20 U.S.C. § 1400 (2004).
Guidelines for references to legal materials can also be found on pages 355-368 in the 7th edition of the Publication Manual of the APA.
