APA (7th ed.) Citation

Clark, O. H., Weber, C. A., & Folch Pi, A. Cirugía endocrina.

Chicago Style (17th ed.) Citation

Clark, Orlo H., Carlos A. Weber, and Alberto Folch Pi. Cirugía Endocrina.

MLA (8th ed.) Citation

Clark, Orlo H., et al. Cirugía Endocrina.