APA aipamena

PEARSON. (2014). KNOW AND GROW WITH DEREK - 5. PEARSON.

Chicago Style aipamena

PEARSON. KNOW AND GROW WITH DEREK - 5. PEARSON, 2014.

MLA aipamena

PEARSON. KNOW AND GROW WITH DEREK - 5. PEARSON, 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.