Baily, P. (1977). Purchasing principles & techniques (3rd.). Pitman.
Chicagoスタイル(17版)引用形式Baily, Peter. Purchasing Principles & Techniques. 3rd. London: Pitman, 1977.
MLA(9版)引用形式Baily, Peter. Purchasing Principles & Techniques. 3rd. Pitman, 1977.
警告: この引用は必ずしも正確ではありません.