APA引文

Hockberger, R. S. (1985). Emergency Medicine: Diagnosing Cases of Ectopic Pregnancy.

Citação norma Chicago

Hockberger, Robert S. Emergency Medicine: Diagnosing Cases of Ectopic Pregnancy. 1985.

MLA引文

Hockberger, Robert S. Emergency Medicine: Diagnosing Cases of Ectopic Pregnancy. 1985.

警告：這些引文格式不一定是100％准確.