APA Citation

Retana Mora, C., & Retana Mora, C. (2010). English 8: Listening exercises. Costa Rica: Santillana.

Chicago Style Citation

Retana Mora, Carolina, and Carolina Retana Mora. English 8: Listening Exercises. Costa Rica: Santillana, 2010.

MLA Citation

Retana Mora, Carolina, and Carolina Retana Mora. English 8: Listening Exercises. Costa Rica: Santillana, 2010.

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