APA (7th ed.) Citation

Ionescu, M., Ross, D. N., & Wooler, G. (1972). Biological tissue in heart valve replacement. Butterworth.

Chicago Style (17th ed.) Citation

Ionescu, M.I., D. N. Ross, and G.H Wooler. Biological Tissue in Heart Valve Replacement. London: Butterworth, 1972.

MLA (9th ed.) Citation

Ionescu, M.I., et al. Biological Tissue in Heart Valve Replacement. Butterworth, 1972.