APA (7th ed.) Citation

Grass, J. A., & González Valdepeña, H. Anestesia regional.

Chicago Style (17th ed.) Citation

Grass, Jefrey A., and Hugo González Valdepeña. Anestesia Regional.

MLA (8th ed.) Citation

Grass, Jefrey A., and Hugo González Valdepeña. Anestesia Regional.

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