APA

Harmer J., . (2000). How to Teach English. Oxford: Longman.

Chicago

Harmer J, . 2000. How to Teach English. Oxford: Longman.

Harvard

Harmer J., . (2000). How to Teach English. Oxford: Longman.

MLA

Harmer J, . How to Teach English. Oxford: Longman. 2000.