APA

Kenny N., Newbrook J. & Acklam R. (2008). CAE Gold Plus. Harlow: Longman.

Chicago

Kenny N, Newbrook J and Acklam R. 2008. CAE Gold Plus. Harlow: Longman.

Harvard

Kenny N., Newbrook J. and Acklam R. (2008). CAE Gold Plus. Harlow: Longman.

MLA

Kenny N, Newbrook J and Acklam R. CAE Gold Plus. Harlow: Longman. 2008.