APA (7th ed.) Citation

Mejía Vallejo, M., & Villegas, B. Colombia campesina.

Chicago Style (17th ed.) Citation

Mejía Vallejo, Manuel, and Benjamín Villegas. Colombia Campesina. Bogotá.

MLA (9th ed.) Citation

Mejía Vallejo, Manuel, and Benjamín Villegas. Colombia Campesina.

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