Census activities and the decennial census :
hearing before the Subcommittee on Census and Population of the Committee on Post Office and Civil Service, House of Representatives, Ninety-seventh Congress, first session, on H.R. 1990 ... June 11, 1981.

APA Citation

United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Census and Population. (1981). Census activities and the decennial census: hearing before the Subcommittee on Census and Population of the Committee on Post Office and Civil Service, House of Representatives, Ninety-seventh Congress, first session, on H.R. 1990 ... June 11, 1981. Washington: U.S. G.P.O. .

MLA Citation

United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Census and Population. Census Activities And the Decennial Census: Hearing Before the Subcommittee On Census And Population of the Committee On Post Office And Civil Service, House of Representatives, Ninety-seventh Congress, First Session, On H.R. 1990 ... June 11, 1981. Washington: U.S. G.P.O. , 1981.

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