Gaya APA

MURPHY, R, M, R. (1990). Essensial grammer in use.-- (Cet.1.--). New York: Cambridge Universty Press.

Gaya MLA

MURPHY, Raynmond, MURPHY,, Raynmond. "Essensial grammer in use.--". Cet.1.-- New York: Cambridge Universty Press, 1990. Buku.