Gaya APA

Spinelli, S., immons, J, A. (2007). New Venture Creation Entrepreneurship For The 21st Century (7th ed). New York: Mc Graw Hill.

Gaya MLA

Spinelli, Stephen., immons, Jeffry, A.. "New Venture Creation Entrepreneurship For The 21st Century". 7th ed New York: Mc Graw Hill, 2007. Text.