APA

Harmer J., . (2012). Just right: Intermediate student's book. UK: Heinle Cengage Learning.

Chicago

Harmer Jeremy, . 2012. Just right: Intermediate student's book. UK: Heinle Cengage Learning.

Harvard

Harmer J., . (2012). Just right: Intermediate student's book. UK: Heinle Cengage Learning.

MLA

Harmer Jeremy, . Just right: Intermediate student's book. UK: Heinle Cengage Learning. 2012.