APA aipamena

Silvester, J. L. (2008). 401 questions every enterpreneur should ask. Jaico.

Chicago Style aipamena

Silvester, James L. 401 Questions Every Enterpreneur Should Ask. New Delhi: Jaico, 2008.

MLA aipamena

Silvester, James L. 401 Questions Every Enterpreneur Should Ask. Jaico, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.