APA

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

Chicago

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

Harvard

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

MLA

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