APA (7th ed.) Citation

Harmer, J. (2018). Essential teacher knowledge: Core concepts in English language teaching. Pearson Education.

Chicago Style (17th ed.) Citation

Harmer, Jeremy. Essential Teacher Knowledge: Core Concepts in English Language Teaching. Harlow, England: Pearson Education, 2018.

MLA (9th ed.) Citation

Harmer, Jeremy. Essential Teacher Knowledge: Core Concepts in English Language Teaching. Pearson Education, 2018.

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