APA Alıntı

STEVE R BAUMGARDNER. (2009). Positive psychology. Pearson Education.

Chicago Stili Alıntı

STEVE R BAUMGARDNER. Positive Psychology. New Delhi: Pearson Education, 2009.

MLA Alıntı

STEVE R BAUMGARDNER. Positive Psychology. Pearson Education, 2009.