APA (7 वां संस्करण) प्रशस्ति पत्र

Harpool, J. D., Culp, R. T., & Galehouse, R. J. (1987). Systems analysis and design projects. Times Mirror/Mosby College Pub.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Harpool, Jack D., Richard T. Culp, और Roberta J. Galehouse. Systems Analysis and Design Projects. St. Louis: Times Mirror/Mosby College Pub, 1987.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Harpool, Jack D., et al. Systems Analysis and Design Projects. Times Mirror/Mosby College Pub, 1987.