APA

Acklam R., Burgess S., . (2001). Advanced Gold. Coursebook. [Б. м.]: Longman.

Chicago

Acklam R, Burgess S, . 2001. Advanced Gold. Coursebook. [Б. м.]: Longman.

Harvard

Acklam R., Burgess S., . (2001). Advanced Gold. Coursebook. [Б. м.]: Longman.

MLA

Acklam R, Burgess S, . Advanced Gold. Coursebook. [Б. м.]: Longman. 2001.