Koschansky, E. S. A. (1944). Death Rate from Peptic Ulcer.
Citação norma ChicagoKoschansky, E. S. A. Death Rate From Peptic Ulcer. 1944.
MLA引文Koschansky, E. S. A. Death Rate From Peptic Ulcer. 1944.
警告：這些引文格式不一定是100％准確.
APA引文