APA

MURPHY R., . (1997). ESSENTIAL GRAMMAR IN USE: WITH ANSWERS. : COMBRIDGE UNIVERSITY PRESS.

Chicago

MURPHY RAYMOND, . 1997. ESSENTIAL GRAMMAR IN USE: WITH ANSWERS. : COMBRIDGE UNIVERSITY PRESS.

Harvard

MURPHY R., . (1997). ESSENTIAL GRAMMAR IN USE: WITH ANSWERS. : COMBRIDGE UNIVERSITY PRESS.

MLA

MURPHY RAYMOND, . ESSENTIAL GRAMMAR IN USE: WITH ANSWERS. : COMBRIDGE UNIVERSITY PRESS. 1997.