Berry, R. (1994). The research project: How to write it (3rd ed.). Routledge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBerry, Ralph. The Research Project: How to Write It. 3rd ed. London ; New York, NY: Routledge, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBerry, Ralph. The Research Project: How to Write It. 3rd ed. Routledge, 1994.
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