Cita APA (7a ed.)

Kendris, C. K. (2007). 501 Spanish verbs (6.). Barron's Educational Series.

Cita Chicago Style (17a ed.)

Kendris, Christopher; Kendris. 501 Spanish Verbs. 6. New York, Estados Unidos: Barron's Educational Series, 2007.

Cita MLA (9a ed.)

Kendris, Christopher; Kendris. 501 Spanish Verbs. 6. Barron's Educational Series, 2007.