APA (7th ed.) Citation

Leech, G., Cruickshank, & Ivanic. (2001). An A-Z to English grammar & usage. Pearson Education.

Chicago Style (17th ed.) Citation

Leech, Geoffrey, Cruickshank, and Ivanic. An A-Z to English Grammar & Usage. Harlow, Essex: Pearson Education, 2001.

MLA (8th ed.) Citation

Leech, Geoffrey, et al. An A-Z to English Grammar & Usage. Pearson Education, 2001.