APA (7 वां संस्करण) प्रशस्ति पत्र

Gray, D. E. (2013). Doing research in the real world (3rd edition.). Sage Publications.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Gray, David E. Doing Research in the Real World. 3rd edition. Thousand Oaks, CA: Sage Publications, 2013.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Gray, David E. Doing Research in the Real World. 3rd edition. Sage Publications, 2013.