APA citiranje

Yacoub, M., Pennacchio, L., Ross, D., & McDonald, L. (1972). Replacement of mitral valve in active infective endocarditis.

Citação norma Chicago

Yacoub, M., L. Pennacchio, D. Ross, and L. McDonald. Replacement of Mitral Valve in Active Infective Endocarditis. 1972.

MLA citiranje

Yacoub, M., L. Pennacchio, D. Ross, and L. McDonald. Replacement of Mitral Valve in Active Infective Endocarditis. 1972.