Não informado. (1949). Progressive agriculture in Arizona. University of Arizona, College of Agriculture.
Chicagoスタイル(17版)引用形式Não informado. Progressive Agriculture in Arizona. Tucson, Ariz: University of Arizona, College of Agriculture, 1949.
MLA(8版)引用形式Não informado. Progressive Agriculture in Arizona. University of Arizona, College of Agriculture, 1949.
警告: この引用は必ずしも正確ではありません.