APA

Harmer J., . (2007). How to Teach English. Harlow: Pearson Education.

Chicago

Harmer J, . 2007. How to Teach English. Harlow: Pearson Education.

Harvard

Harmer J., . (2007). How to Teach English. Harlow: Pearson Education.

MLA

Harmer J, . How to Teach English. Harlow: Pearson Education. 2007.