APA-viite (7. p.)

Aragones, L., & Palencia, R. (2015). Advanced Spanish grammar: A practical guide to 100+ essential skills. McGraw-Hill Education.

Chicago-viite (17. p.)

Aragones, Luis, ja Ramon Palencia. Advanced Spanish Grammar: A Practical Guide to 100+ Essential Skills. New York: McGraw-Hill Education, 2015.

MLA-viite (9. p.)

Aragones, Luis, ja Ramon Palencia. Advanced Spanish Grammar: A Practical Guide to 100+ Essential Skills. McGraw-Hill Education, 2015.