Phillips, E., & Pugh, D. S. (1994). How to get a PhD: A handbook for students and their supervisors (2nd ed.). Open University Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Phillips, Estelle, και Derek Salman Pugh. How to Get a PhD: A Handbook for Students and Their Supervisors. 2nd ed. Buckingham, Philadelphia: Open University Press, 1994.
Παραπομπή σε μορφή MLA (9th εκδ.)Phillips, Estelle, και Derek Salman Pugh. How to Get a PhD: A Handbook for Students and Their Supervisors. 2nd ed. Open University Press, 1994.
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