APA

Dummett P., . (2013). Life. Upper Intermediate. B2. Andover: Cengage Learning.

Chicago

Dummett P, . 2013. Life. Upper Intermediate. B2. Andover: Cengage Learning.

Harvard

Dummett P., . (2013). Life. Upper Intermediate. B2. Andover: Cengage Learning.

MLA

Dummett P, . Life. Upper Intermediate. B2. Andover: Cengage Learning. 2013.