APA

United States, . (1966). Common Varieties Act amendments: hearing before Subcommittee on Minerals, Materials, and Fuels, 89th Congress, 2d session, on S. 2281 and S. 3485, June 28, 1966. [Washington, D.C.]: .

Chicago

United States, . 1966. Common Varieties Act amendments: hearing before Subcommittee on Minerals, Materials, and Fuels, 89th Congress, 2d session, on S. 2281 and S. 3485, June 28, 1966. [Washington, D.C.]: .

Harvard

United States, . (1966). Common Varieties Act amendments: hearing before Subcommittee on Minerals, Materials, and Fuels, 89th Congress, 2d session, on S. 2281 and S. 3485, June 28, 1966. [Washington, D.C.]: .

MLA

United States, . Common Varieties Act amendments: hearing before Subcommittee on Minerals, Materials, and Fuels, 89th Congress, 2d session, on S. 2281 and S. 3485, June 28, 1966. [Washington, D.C.]: . 1966.