APA (7th ed.) Citation

Tan, A., & Conde, C. El valle del asombro. Planeta.

Chicago Style (17th ed.) Citation

Tan, Amy, and Claudia Conde. El Valle Del Asombro. Barcelona: Planeta.

MLA (9th ed.) Citation

Tan, Amy, and Claudia Conde. El Valle Del Asombro. Planeta.

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