APA (7th ed.) Citation

Manuel, C. B. V., Orlando, R. O., Patricia, T. D. S., & Lucila, U. d. G. Playing and Teaching English to Adults. Universidad Nacional de Colombia.

Chicago Style (17th ed.) Citation

Manuel, Cuervo Ballén Víctor, Reyes Oscar Orlando, Torres Díaz Sandra Patricia, and Urrea de Garcés Lucila. Playing and Teaching English to Adults. Universidad Nacional de Colombia.

MLA (9th ed.) Citation

Manuel, Cuervo Ballén Víctor, et al. Playing and Teaching English to Adults. Universidad Nacional de Colombia.