APA Style

Kendris, C., Kendris, T. (2007). 501 Spanish Verb: Fully Conjugated in all the tenses in a new, Easy-to-Learn Format, Alphabetically Arranged (6). New York: Barron's.

MLA Style

Kendris, Christopher., Kendris, Theodore. "501 Spanish Verb: Fully Conjugated in all the tenses in a new, Easy-to-Learn Format, Alphabetically Arranged". 6 New York: Barron's, 2007. Text.