APA aipamena

Barringer, B. R. (2006). Entrepreneurship. Pearson.

Chicago Style aipamena

Barringer, Bruce R. Entrepreneurship. Pearson, 2006.

MLA aipamena

Barringer, Bruce R. Entrepreneurship. Pearson, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.