Cita APA (7a ed.)

Behrens, S. J. (2010). Grammar: A pocket guide. Routledge.

Cita Chicago Style (17a ed.)

Behrens, Susan J. Grammar: A Pocket Guide. London ; New York: Routledge, 2010.

Cita MLA (8a ed.)

Behrens, Susan J. Grammar: A Pocket Guide. Routledge, 2010.