United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Census and Statistics & ProQuest (Firm). (1972). The concept of national voter registration: Hearings, Ninety-second Congress, second session. U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Census and Statistics and ProQuest (Firm). The Concept of National Voter Registration: Hearings, Ninety-second Congress, Second Session. Washington: U.S. Govt. Print. Off, 1972.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Census and Statistics and ProQuest (Firm). The Concept of National Voter Registration: Hearings, Ninety-second Congress, Second Session. U.S. Govt. Print. Off, 1972.