Citação norma APA

Lechowicz, R., & Elwertowski, M. (2015). Standards of the Polish Ultrasound Society. Ultrasound examination of the portal system and hepatic vessels. J Ultrason.

Citação norma Chicago

Lechowicz, Robert, and Michał Elwertowski. "Standards of the Polish Ultrasound Society. Ultrasound Examination of the Portal System and Hepatic Vessels." J Ultrason 2015.

Citação norma MLA

Lechowicz, Robert, and Michał Elwertowski. "Standards of the Polish Ultrasound Society. Ultrasound Examination of the Portal System and Hepatic Vessels." J Ultrason 2015.

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