Aragones, L., & Palencia, R. (2015). Advanced Spanish grammar: A practical guide to 100+ essential skills. McGraw-Hill Education.
Lua i Stíl Chicago (17ú heag.)Aragones, Luis, agus Ramon Palencia. Advanced Spanish Grammar: A Practical Guide to 100+ Essential Skills. New York: McGraw-Hill Education, 2015.
Lua MLA (9ú heag.)Aragones, Luis, agus Ramon Palencia. Advanced Spanish Grammar: A Practical Guide to 100+ Essential Skills. McGraw-Hill Education, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.