APA (7th ed.) Citation

Greenbaum, S., & Nelson, G. (2007). An introduction to English grammar (2. ed., [Nachdr.].). Longman.

Chicago Style (17th ed.) Citation

Greenbaum, Sidney, and Gerald Nelson. An Introduction to English Grammar. 2. ed., [Nachdr.]. London ; Munich [u.a.]: Longman, 2007.

MLA (9th ed.) Citation

Greenbaum, Sidney, and Gerald Nelson. An Introduction to English Grammar. 2. ed., [Nachdr.]. Longman, 2007.