APA引文

Hogan, A. (2020). COVID-19 and emergency surgery. Br J Surg.

Citação norma Chicago

Hogan, A. "COVID-19 and Emergency Surgery." Br J Surg 2020.

MLA引文

Hogan, A. "COVID-19 and Emergency Surgery." Br J Surg 2020.

警告：這些引文格式不一定是100％准確.