Gumpert, D. E. (1994). How to really create a successful business plan: Step-by-step guide (2d ed.).
Style de citation Chicago (17e éd.)Gumpert, David E. How to Really Create a Successful Business Plan: Step-by-step Guide. 2d ed. Goldhirsh Group, Inc, 1994.
Style de citation MLA (9e éd.)Gumpert, David E. How to Really Create a Successful Business Plan: Step-by-step Guide. 2d ed. 1994.
Attention : ces citations peuvent ne pas être correctes à 100%.