APA citiranje

Bryant, L. R., & Trinkle, J. K. (1971). Mitral valvotomy in the valve replacement era.

Citação norma Chicago

Bryant, L R., and J K. Trinkle. Mitral Valvotomy in the Valve Replacement Era. 1971.

MLA citiranje

Bryant, L R., and J K. Trinkle. Mitral Valvotomy in the Valve Replacement Era. 1971.