APA

Newbrook J., Wilson J., . (2002). New Proficiency Gold. Coursbook. [Б. м.]: Longman.

Chicago

Newbrook J, Wilson J, . 2002. New Proficiency Gold. Coursbook. [Б. м.]: Longman.

Harvard

Newbrook J., Wilson J., . (2002). New Proficiency Gold. Coursbook. [Б. м.]: Longman.

MLA

Newbrook J, Wilson J, . New Proficiency Gold. Coursbook. [Б. м.]: Longman. 2002.