APA (7th ed.) Citation

Greiff, L. d., & Escobar Calle, M. La columna de Leo.

Chicago Style (17th ed.) Citation

Greiff, León de, and Miguel Escobar Calle. La Columna De Leo. Medellín.

MLA (9th ed.) Citation

Greiff, León de, and Miguel Escobar Calle. La Columna De Leo.

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