Gaya APA

barker, C., mitchell, L. (2014). Cambridge clobal english for cambridge secondary 1 english as a second language coursebook 8 (Ed 1). Cambridge, United Kingdom: Cambridge university press.

Gaya MLA

barker, Chris., mitchell, Libby. "Cambridge clobal english for cambridge secondary 1 english as a second language coursebook 8". Ed 1 Cambridge, United Kingdom: Cambridge university press, 2014. Text.