APA (7th ed.) Citation

Reber, H. A., & Rivera M., B. El Páncreas.

Chicago Style (17th ed.) Citation

Reber, Howard A., and Bernardo Rivera M. El Páncreas.

MLA (8th ed.) Citation

Reber, Howard A., and Bernardo Rivera M. El Páncreas.

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