APA (7th ed.) Citation

Nelson, G. (2001). English: An essential grammar. Routledge.

Chicago Style (17th ed.) Citation

Nelson, Gerald. English: An Essential Grammar. London: Routledge, 2001.

MLA (9th ed.) Citation

Nelson, Gerald. English: An Essential Grammar. Routledge, 2001.

Warning: These citations may not always be 100% accurate.