United States. Bureau of Plant Quarantine. (1929). Regulations pursuant to Public Resolution No. 47, 70th Congress, entitled "To provide for eradication of pink bollworm and authorizing appropriation therefor," approved May 21, 1928. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Quarantine. Regulations Pursuant to Public Resolution No. 47, 70th Congress, Entitled "To Provide for Eradication of Pink Bollworm and Authorizing Appropriation Therefor," Approved May 21, 1928. Washington: U.S. GPO, 1929.
MLA (9th ed.) CitationUnited States. Bureau of Plant Quarantine. Regulations Pursuant to Public Resolution No. 47, 70th Congress, Entitled "To Provide for Eradication of Pink Bollworm and Authorizing Appropriation Therefor," Approved May 21, 1928. U.S. GPO, 1929.