Gaya APA

Adams, P. (1991). Socio-cultural issues in english for academic purposes/ edited by Penny Adams, Brian Heaton, Peter Howarth . London: Baleap.

Gaya MLA

Adams, Penny. "Socio-cultural issues in english for academic purposes/ edited by Penny Adams, Brian Heaton, Peter Howarth". London: Baleap, 1991. Text.