Leigh, A. (1999). The ultimate business presentation book. Random House.
Chicagoスタイル(17版)引用形式Leigh, Andrew. The Ultimate Business Presentation Book. London: Random House, 1999.
MLA(9版)引用形式Leigh, Andrew. The Ultimate Business Presentation Book. Random House, 1999.
警告: この引用は必ずしも正確ではありません.