APA引文

Nixon, P. G. F. (1960). The Transeptal Approach to the Left Atrium in Mitral Regurgitation.

Citação norma Chicago

Nixon, P. G. F. The Transeptal Approach to the Left Atrium in Mitral Regurgitation. 1960.

MLA引文

Nixon, P. G. F. The Transeptal Approach to the Left Atrium in Mitral Regurgitation. 1960.

警告：這些引文格式不一定是100％准確.