APA (7th ed.) Citation

Farrell, E. M., Keon, W. J., & Folch Pi, A. Cirugía cardiotoracica.

Chicago Style (17th ed.) Citation

Farrell, Edward M., Wilbert J. Keon, and Alberto Folch Pi. Cirugía Cardiotoracica.

MLA (8th ed.) Citation

Farrell, Edward M., et al. Cirugía Cardiotoracica.