Gaya APA

(Pengarang), R, M. (1997). ESSENTIAL GRAMMAR IN USE : WITH ANSWER, SECOND EDITION (2). GREAT BRITAIN :: CAMBRIDGE UNIVERCUTY PRESS,.

Gaya MLA

(Pengarang), RAYMOND, MURPHY. "ESSENTIAL GRAMMAR IN USE : WITH ANSWER, SECOND EDITION". 2 GREAT BRITAIN :: CAMBRIDGE UNIVERCUTY PRESS,, 1997. Monograf.