Citação norma APA

Ashrafian, H., Bogle, R. G., Rosen, S. D., Henein, M., & Evans, T. W. (2004). Portable echocardiography: Is essential for the management of acutely ill patients. BMJ Publishing Group Ltd.

Citação norma Chicago

Ashrafian, Houman, Richard G. Bogle, Stuart D. Rosen, Michael Henein, and Timothy W. Evans. Portable Echocardiography: Is Essential for the Management of Acutely Ill Patients. BMJ Publishing Group Ltd, 2004.

Citação norma MLA

Ashrafian, Houman, et al. Portable Echocardiography: Is Essential for the Management of Acutely Ill Patients. BMJ Publishing Group Ltd, 2004.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.