Petre, Marian, 1959- The unwritten rules of PhD research / Marian Petre and Gordon Rugg. - 2nd ed. - Maidenhead, England ; New York : McGraw Hill/Open University Press, c2010. - xiii, 272 p. ; 23 cm. - Open UP study skills . Pusat Pengajian Bahasa dan Pembangunan Insaniah Includes bibliographical references and index ISBN: 0335237029 9780335237029 Subjects--Topical Terms: Doctor of philosophy degree--Great Britain.