APA aipamena

AMERICAN PSYCHOLOGICAL ASSOCIATION. (2013). PUBLICATION MANUAL OF THE AMERICAN PSYCHOLOGICAL ASSOCIATION (6TH ED.). WASHINGTON.

Chicago Style aipamena

AMERICAN PSYCHOLOGICAL ASSOCIATION. PUBLICATION MANUAL OF THE AMERICAN PSYCHOLOGICAL ASSOCIATION. 6TH ED. AMERICAN PSYCHOLOGICAL ASSOCIATION: WASHINGTON, 2013.

MLA aipamena

AMERICAN PSYCHOLOGICAL ASSOCIATION. PUBLICATION MANUAL OF THE AMERICAN PSYCHOLOGICAL ASSOCIATION. 6TH ED. WASHINGTON, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.