APA (7th ed.) Citation

Leech. (2003). An A-Z of english grammar & usage. Longman.

Chicago Style (17th ed.) Citation

Leech. An A-Z of English Grammar & Usage. Essex: Longman, 2003.

MLA (8th ed.) Citation

Leech. An A-Z of English Grammar & Usage. Longman, 2003.

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