APA引文

Oakey, R. E., & Hawkins, R. A. (1976). Letter: Oestrogens as a cause of endometrial carcinoma.

Citação norma Chicago

Oakey, R E., and R A. Hawkins. Letter: Oestrogens As a Cause of Endometrial Carcinoma. 1976.

MLA引文

Oakey, R E., and R A. Hawkins. Letter: Oestrogens As a Cause of Endometrial Carcinoma. 1976.

警告：這些引文格式不一定是100％准確.