Não informado. (1940). Agricultural Science and Genetics Newsletter. U.S. Department of Agriculture.
Chicagoスタイル(17版)引用形式Não informado. Agricultural Science and Genetics Newsletter. Cold Spring Harbor, NY: U.S. Department of Agriculture, 1940.
MLA(8版)引用形式Não informado. Agricultural Science and Genetics Newsletter. U.S. Department of Agriculture, 1940.
警告: この引用は必ずしも正確ではありません.