APA引文

Rapezzi, C., & Ferrari, R. (2020). The Cardiologist at the time of Coronavirus: A perfect storm. Eur Heart J.

Citação norma Chicago

Rapezzi, Claudio, and Roberto Ferrari. "The Cardiologist At the Time of Coronavirus: A Perfect Storm." Eur Heart J 2020.

MLA引文

Rapezzi, Claudio, and Roberto Ferrari. "The Cardiologist At the Time of Coronavirus: A Perfect Storm." Eur Heart J 2020.

警告：這些引文格式不一定是100％准確.