1. Bailer, B. A. 1988.Statement Before the Subcommittee on Census and Population, Committee on Post Office and Civil Service, 76–133. Washington, DC: U.S. Government Printing Office. U.S. House of Representatives, One Hundredth Congress, Second Session, Hearings on H.R. 3511, the Decennial Census Improvement Act, Serial No. 100–51
2. Carlucci, C. P. The Impact of an Adjustment to the 1980 Census on Congressional and Legislative Reapportionment. Proceedings of the 1980 Conference on Census Undercount. pp.145–152. Washington, DC: U.S. Bureau of the Census.