APA (7th ed.) Citation

de Lima, R., Antunes, A. M., Cravino, J., Velho, H. V., Roquette, J., & Macedo, M. M. (1980). Valve substitutes in cardiac surgery.

Chicago Style (17th ed.) Citation

de Lima, Rui, A. Mata Antunes, João Cravino, Henrique Vaz Velho, José Roquette, and Manuel Machado Macedo. Valve Substitutes in Cardiac Surgery. 1980.

MLA (8th ed.) Citation

de Lima, Rui, et al. Valve Substitutes in Cardiac Surgery. 1980.