Wolff, J. Marketing for Entrepreneurs (1.). Pearson Education UK.
Chicagoスタイル(17版)引用形式Wolff, Jurgen. Marketing for Entrepreneurs. 1. Pearson Education UK.
MLA(8版)引用形式Wolff, Jurgen. Marketing for Entrepreneurs. 1. Pearson Education UK.
警告: この引用は必ずしも正確ではありません.