American Berkshire association. (1883). The swine breeder's manual. The American Berkshire association.
Chicagoスタイル(17版)引用形式American Berkshire association. The Swine Breeder's Manual. Springfield, Ill.: The American Berkshire association, 1883.
MLA(9版)引用形式American Berkshire association. The Swine Breeder's Manual. The American Berkshire association, 1883.
警告: この引用は必ずしも正確ではありません.