Compilation of laws of the several states :
in force on May 1, 1930, dealing with the regulation of outdoor advertising /
prepared by United States Bureau of Public Roads.
APA Citation
United States. Bureau of Public Roads. (1931). Compilation of laws of the several states: in force on May 1, 1930, dealing with the regulation of outdoor advertising. [Washington.
MLA Citation
United States. Bureau of Public Roads. Compilation of Laws of the Several States: In Force On May 1, 1930, Dealing With the Regulation of Outdoor Advertising. [Washington, 1931.
Warning: These citations may not always be complete (especially for serials).