APA引文

Barber, H. W. (1920). Case of Acanthosis Nigricans.

Citação norma Chicago

Barber, H. W. Case of Acanthosis Nigricans. 1920.

MLA引文

Barber, H. W. Case of Acanthosis Nigricans. 1920.

警告：這些引文格式不一定是100％准確.