APA aipamena

Roberts, M. J. New Business Ventures and the Entrepreneur, 6ed. McGraw Hill.

Chicago Style aipamena

Roberts, Michael J. New Business Ventures and the Entrepreneur, 6ed. McGraw Hill.

MLA aipamena

Roberts, Michael J. New Business Ventures and the Entrepreneur, 6ed. McGraw Hill.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.