Cita APA (7a ed.)

Beyer, T. (2013). 501 English verb fully conjugated in all the tenses in an easy-to-learn formal alphabetically arranged. Barron's Educational Series.

Cita Chicago Style (17a ed.)

Beyer, Thomas. 501 English Verb Fully Conjugated in All the Tenses in an Easy-to-learn Formal Alphabetically Arranged. New York: Barron's Educational Series, 2013.

Cita MLA (9a ed.)

Beyer, Thomas. 501 English Verb Fully Conjugated in All the Tenses in an Easy-to-learn Formal Alphabetically Arranged. Barron's Educational Series, 2013.