APA (7 वां संस्करण) प्रशस्ति पत्र

McLaren, D. S., & Frigg, M. (1997). Sight and life manual on vitamin A deficiency disorders (VADD). Task Force Sight and Life.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

McLaren, Donald S., और Martin Frigg. Sight and Life Manual on Vitamin A Deficiency Disorders (VADD). Switzerland: Task Force Sight and Life, 1997.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

McLaren, Donald S., और Martin Frigg. Sight and Life Manual on Vitamin A Deficiency Disorders (VADD). Task Force Sight and Life, 1997.