APA

Burgess S., Acklam R., . (2004). Advanced Gold. Edinburgh: Longman.

Chicago

Burgess S, Acklam R, . 2004. Advanced Gold. Edinburgh: Longman.

Harvard

Burgess S., Acklam R., . (2004). Advanced Gold. Edinburgh: Longman.

MLA

Burgess S, Acklam R, . Advanced Gold. Edinburgh: Longman. 2004.