Stephenson, J. (2005). 202 services you can sell for big profits. Irvine, CA: Entrepreneur Press.
シカゴスタイル引用形Stephenson, James. 202 Services You Can Sell for Big Profits. Irvine, CA: Entrepreneur Press, 2005.
MLA引用形式Stephenson, James. 202 Services You Can Sell for Big Profits. Irvine, CA: Entrepreneur Press, 2005.
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