APA ציטוט

Hopkins, D., & Cullen, P. (2007). Cambridge grammar for IELTS: Grammar reference and practice. New York: Cambridge University Press.

Trích dẫn kiểu Chicago

Hopkins, Diana, và Pauline Cullen. Cambridge Grammar for IELTS: Grammar Reference and Practice. New York: Cambridge University Press, 2007.

ציטוט MLA

Hopkins, Diana, và Pauline Cullen. Cambridge Grammar for IELTS: Grammar Reference and Practice. New York: Cambridge University Press, 2007.