APA (7th ed.) Citation

Crosby, W., Folch y Pi, A., & Vela, H. Trastornos hematológicos.

Chicago Style (17th ed.) Citation

Crosby, William, Alberto Folch y Pi, and Homero Vela. Trastornos Hematológicos.

MLA (8th ed.) Citation

Crosby, William, et al. Trastornos Hematológicos.

Warning: These citations may not always be 100% accurate.