MURPHY, R. (2016). ESSENTIAL ENGLISH GRAMMAR A SELF STUDY REFERENCE AND PRATICE BOOK FOR STUDENTS OF ENGLISH WITH ANSWERS. CAMBRIDGE UNIVERSITY PRESS.
Cita Chicago Style (17a ed.)MURPHY, RAYMOND. ESSENTIAL ENGLISH GRAMMAR A SELF STUDY REFERENCE AND PRATICE BOOK FOR STUDENTS OF ENGLISH WITH ANSWERS. DELHI: CAMBRIDGE UNIVERSITY PRESS, 2016.
Cita MLA (9a ed.)MURPHY, RAYMOND. ESSENTIAL ENGLISH GRAMMAR A SELF STUDY REFERENCE AND PRATICE BOOK FOR STUDENTS OF ENGLISH WITH ANSWERS. CAMBRIDGE UNIVERSITY PRESS, 2016.
Precaución: Estas citas no son 100% exactas.