APA (7th ed.) Citation

Katzenbach, J., & Martín Sanz, M. C. Retrato en sangre.

Chicago Style (17th ed.) Citation

Katzenbach, John, and María Cristina Martín Sanz. Retrato En Sangre. Bogotá.

MLA (9th ed.) Citation

Katzenbach, John, and María Cristina Martín Sanz. Retrato En Sangre.

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