APA (7th ed.) Citation

Thornbury & Harmer. (1999). How to teach Grammar. Pearson Education Limited.

Chicago Style (17th ed.) Citation

Thornbury and Harmer. How to Teach Grammar. England: Pearson Education Limited, 1999.

MLA (8th ed.) Citation

Thornbury and Harmer. How to Teach Grammar. Pearson Education Limited, 1999.

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