APA引文

Gehrke, J., Leeman, S., Raphael, M., & Pridie, R. B. (1975). Non-invasive left ventricular volume determination by two-dimensional echocardiography.

Citação norma Chicago

Gehrke, J., S. Leeman, M. Raphael, and R B. Pridie. Non-invasive Left Ventricular Volume Determination By Two-dimensional Echocardiography. 1975.

MLA引文

Gehrke, J., S. Leeman, M. Raphael, and R B. Pridie. Non-invasive Left Ventricular Volume Determination By Two-dimensional Echocardiography. 1975.

警告：這些引文格式不一定是100％准確.