Gumpert, D. E. (1991). Starting your own business: A step-by-step guide featuring insights and advise from the founders of... MA: Goldhirsh Group.
シカゴスタイル引用形Gumpert, David E. Starting Your Own Business: A Step-by-step Guide Featuring Insights and Advise From the Founders Of... MA: Goldhirsh Group, 1991.
MLA引用形式Gumpert, David E. Starting Your Own Business: A Step-by-step Guide Featuring Insights and Advise From the Founders Of... MA: Goldhirsh Group, 1991.
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