APA aipamena

(OWW), O. 251/5.2.2: Briefwisseling.

Chicago Style aipamena

(OWW), Oxfam-Wereldwinkels. 251/5.2.2: Briefwisseling.

MLA aipamena

(OWW), Oxfam-Wereldwinkels. 251/5.2.2: Briefwisseling.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.