PEARSON. (2014). KNOW AND GROW WITH DEREK - 5. PEARSON.
Chicago Style aipamenaPEARSON. KNOW AND GROW WITH DEREK - 5. PEARSON, 2014.
MLA aipamenaPEARSON. KNOW AND GROW WITH DEREK - 5. PEARSON, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.