Gaya APA

Zerbini, E, J. (1968). Surgical Treatment of Lesions of The Mitral, Aortic and Tricuspid Valves . Sao Paulo: Medecine School, University of Sao Paulo.

Gaya MLA

Zerbini, E., J.. "Surgical Treatment of Lesions of The Mitral, Aortic and Tricuspid Valves". Sao Paulo: Medecine School, University of Sao Paulo, 1968. Text.