Beyond the limits :
a law enforcement guide to speed enforcement.

APA Citation

United States. National Highway Traffic Safety Administration. (1992). Beyond the limits: a law enforcement guide to speed enforcement. [Washington, D.C.?]: U.S. Dept. of Transportation, National Highway Traffic Safety Administration.

MLA Citation

United States. National Highway Traffic Safety Administration. Beyond the Limits: a Law Enforcement Guide to Speed Enforcement. [Washington, D.C.?]: U.S. Dept. of Transportation, National Highway Traffic Safety Administration, 1992.

Warning: These citations may not always be complete (especially for serials).