Tracy, B. (2007). The Art of Closing the Sale. AMACOM.
Chicagoスタイル(17版)引用形式Tracy, Brain. The Art of Closing the Sale. New York: AMACOM, 2007.
MLA(9版)引用形式Tracy, Brain. The Art of Closing the Sale. AMACOM, 2007.
警告: この引用は必ずしも正確ではありません.
APA(7版)引用形式