APA Citation

Zumbado Gutiérrez, M., & Rojas Rodríguez, A. G. (2019). What's up? 9 (2. edition.). Costa Rica: Richmond.

Chicago Style Citation

Zumbado Gutiérrez, Marieta, and A. Gabriela Rojas Rodríguez. What's Up? 9. 2. edition. Costa Rica: Richmond, 2019.

MLA Citation

Zumbado Gutiérrez, Marieta, and A. Gabriela Rojas Rodríguez. What's Up? 9. 2. edition. Costa Rica: Richmond, 2019.

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