APA (7th ed.) Citation
Calderón, A., Colavitia, E., & Zamora, O. (2011). Ciencias Química 3.
Chicago Style (17th ed.) Citation
Calderón, Antonio, Ernesto Colavitia, and Omar Zamora. Ciencias Química 3. 2011.
MLA (9th ed.) Citation
Calderón, Antonio, et al. Ciencias Química 3. 2011.
Warning: These citations may not always be 100% accurate.