APA (7 वां संस्करण) प्रशस्ति पत्र

Morrison, C., & Hughes, P. (1992). Professional engineering practice: Ethical aspects (3rd ed.). McGraw-Hill Ryerson.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Morrison, Carson, और Philip Hughes. Professional Engineering Practice: Ethical Aspects. 3rd ed. Toronto: McGraw-Hill Ryerson, 1992.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Morrison, Carson, और Philip Hughes. Professional Engineering Practice: Ethical Aspects. 3rd ed. McGraw-Hill Ryerson, 1992.