APA
Bernal, J. M. & Revuelta, J. M. (1998). Mitral valve homografts. Journal of Heart Valve Disease, 4(1), 47-48.
MLA
Bernal, J M. and J M. Revuelta. "Mitral valve homografts." Journal of Heart Valve Disease 4.1 (1998): 47-48.
Chicago
Bernal, J M. and J M. Revuelta. "Mitral valve homografts." Journal of Heart Valve Disease 4, no. 1 (1998): 47-48.
Harvard
Bernal, J. M. and Revuelta, J. M. (1998) 'Mitral valve homografts' Journal of Heart Valve Disease 4(1), pp. 47-48.
Vancouver
Bernal JM, Revuelta JM. Mitral valve homografts. Journal of Heart Valve Disease. 1998 ;4(1):47-48.