APA citiranje

Ionescu, M. I., Pakrashi, B. C., Mary, D. A. S., Bartek, I. T., & Wooler, G. H. (1974). Replacement of heart valves with frame-mounted tissue grafts.

Citação norma Chicago

Ionescu, Marian I., Brojesh C. Pakrashi, David A. S. Mary, Ivan T. Bartek, and Geoffrey H. Wooler. Replacement of Heart Valves With Frame-mounted Tissue Grafts. 1974.

MLA citiranje

Ionescu, Marian I., et al. Replacement of Heart Valves With Frame-mounted Tissue Grafts. 1974.