Cita APA (7th ed.)

Wightwick, C. (2005). German grammar handbook. Berlitz Pub.

Cita Chicago (17th ed.)

Wightwick, Christopher. German Grammar Handbook. Singapore: Berlitz Pub, 2005.

Cita MLA (9th ed.)

Wightwick, Christopher. German Grammar Handbook. Berlitz Pub, 2005.