Lua APA (7ú heag.)
Peters Michael P. (1998). Entrepreneurship (4 th ed.). TaTa mc Graw Hill.
Lua i Stíl Chicago (17ú heag.)
Peters Michael P. Entrepreneurship. 4 th ed. New York: TaTa mc Graw Hill, 1998.
Lua MLA (9ú heag.)
Peters Michael P. Entrepreneurship. 4 th ed. TaTa mc Graw Hill, 1998.
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