Não informado. (1956). Research for farmers. Department of Agriculture.
Chicagoスタイル(17版)引用形式Não informado. Research for Farmers. Ottawa: Department of Agriculture, 1956.
MLA(8版)引用形式Não informado. Research for Farmers. Department of Agriculture, 1956.
警告: この引用は必ずしも正確ではありません.