APA
United States D. o. A., . (1977). Seed Characteristics of 42 Economically Important Species of Solanaceae in the United States. Technical Bulletin no. 1471. : U.S. Dept. of Agriculture.
Chicago
United States Dept of Agriculture, . 1977. Seed Characteristics of 42 Economically Important Species of Solanaceae in the United States. Technical Bulletin no. 1471. : U.S. Dept. of Agriculture.
Harvard
United States D. o. A., . (1977). Seed Characteristics of 42 Economically Important Species of Solanaceae in the United States. Technical Bulletin no. 1471. : U.S. Dept. of Agriculture.
MLA
United States Dept of Agriculture, . Seed Characteristics of 42 Economically Important Species of Solanaceae in the United States. Technical Bulletin no. 1471. : U.S. Dept. of Agriculture. 1977.