Title 13, United States code :
Census /
prepared by the Committee on Post Office and Civil Service, United States Senate.

APA Citation

United States., United States. Congress. Senate. Committee on Post Office and Civil Service. (1977). Title 13, United States code: Census. Washington: U.S. Govt. Print. Off..

MLA Citation

United States, and United States. Congress. Senate. Committee on Post Office and Civil Service. Title 13, United States Code: Census. Washington: U.S. Govt. Print. Off., 1977.

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