APA (7th ed.) Citation

Durrell, M., & Hammer, A. E. (2011). Hammer's German grammar and usage (Fifth edition.). Hodder Education.

Chicago Style (17th ed.) Citation

Durrell, Martin, and A. E. Hammer. Hammer's German Grammar and Usage. Fifth edition. London: Hodder Education, 2011.

MLA (9th ed.) Citation

Durrell, Martin, and A. E. Hammer. Hammer's German Grammar and Usage. Fifth edition. Hodder Education, 2011.