Córdoba Cubillo, P. M., Coto Keith, R., Ramírez Salas, M. M., & Rodríguez Ramírez, X. M. (2015). Let's listen for 9th graders (1. edition.). Costa Rica: Editorial UCR.
Chicago Style CitationCórdoba Cubillo, Patricia María, Rossina Coto Keith, Marlene M. Ramírez Salas, and Xinia María Rodríguez Ramírez. Let's Listen for 9th Graders. 1. edition. Costa Rica: Editorial UCR, 2015.
MLA CitationCórdoba Cubillo, Patricia María, Rossina Coto Keith, Marlene M. Ramírez Salas, and Xinia María Rodríguez Ramírez. Let's Listen for 9th Graders. 1. edition. Costa Rica: Editorial UCR, 2015.
Warning: These citations may not always be 100% accurate.