APA (7 वां संस्करण) प्रशस्ति पत्र

Hill, B. (2024). Quality management essentials. Willford Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Hill, Barry. Quality Management Essentials. Forest Hills, NY: Willford Press, 2024.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Hill, Barry. Quality Management Essentials. Willford Press, 2024.