APA Style

Cullen, P., French, A, C, 0, J, V, C. (2014). Cambridge English: The official Cambridge guide to IELTS : for academic & general training : student's book with answers (พิมพ์ครั้งที่ 1). : Cambridge University Press.

MLA Style

Cullen, Pauline., French, Amanda,, Co-author, 0, Jakeman,, Vanessa,, Co-author. "Cambridge English: The official Cambridge guide to IELTS : for academic & general training : student's book with answers". พิมพ์ครั้งที่ 1 : Cambridge University Press, 2014. .