APA引文

Chandraratna, P. A., Vlahovich, G., & Aronow, W. S. (1979). Echocardiographic study of significance of left ventricular minor axis shortening during pre-ejection phase of systole.

Citação norma Chicago

Chandraratna, P A., G. Vlahovich, and W S. Aronow. Echocardiographic Study of Significance of Left Ventricular Minor Axis Shortening During Pre-ejection Phase of Systole. 1979.

MLA引文

Chandraratna, P A., G. Vlahovich, and W S. Aronow. Echocardiographic Study of Significance of Left Ventricular Minor Axis Shortening During Pre-ejection Phase of Systole. 1979.

警告：這些引文格式不一定是100％准確.