APA引文

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引文

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

警告：這些引文格式不一定是100％准確.