Berry, H. A. (1964). Purchasing guide. National Foremen's Institute.
Chicagoスタイル(17版)引用形式Berry, Harold A. Purchasing Guide. Waterford, Conn.: National Foremen's Institute, 1964.
MLA(8版)引用形式Berry, Harold A. Purchasing Guide. National Foremen's Institute, 1964.
警告: この引用は必ずしも正確ではありません.