Citing Government Documents can be confusing and difficult because the varied format and source. The following are comprehensive guides to citing Government Documents.
The following is a great resource from the Indiana University on citing Government Information.
Washington, DC : National Archives and Records Administration, 2007.
AE 1.113:17/2007 – Offsite
DocsCite is a step-by-step guide to putting government publication citations into proper style format (APA or MLA) using a template; from Arizona State University.
Good basic examples, including an electronic bill via GPO, and a file from a CD-ROM; from the Montana State University.