Gilbert, N. W. (1977). Opium poppy research in the southwestern United States, 1945-66. Dept. of Agriculture, Agricultural Research Service, Western Region.
Chicago Style (17th ed.) CitationGilbert, Norris W. Opium Poppy Research in the Southwestern United States, 1945-66. [Washington]: Dept. of Agriculture, Agricultural Research Service, Western Region, 1977.
MLA (9th ed.) CitationGilbert, Norris W. Opium Poppy Research in the Southwestern United States, 1945-66. Dept. of Agriculture, Agricultural Research Service, Western Region, 1977.
Warning: These citations may not always be 100% accurate.