Ries, A. (2000). Positioningthe battle for your mind. McGraw-Hill.
Chicagoスタイル(17版)引用形式Ries, Al. Positioningthe Battle for Your Mind. McGraw-Hill, 2000.
MLA(8版)引用形式Ries, Al. Positioningthe Battle for Your Mind. McGraw-Hill, 2000.
警告: この引用は必ずしも正確ではありません.