Graves, N. (2005). Working for a doctorate: A guide for the humanities and social sciences. Routledge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGraves, Norman. Working for a Doctorate: A Guide for the Humanities and Social Sciences. Routledge, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGraves, Norman. Working for a Doctorate: A Guide for the Humanities and Social Sciences. Routledge, 2005.
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