APA引文

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

芝加哥风格引文

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

MLA引文

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

警告：这些引文格式不一定是100％准确.