APA (7 वां संस्करण) प्रशस्ति पत्र

Aylward, F., & Jul, M. (1975). Protein and nutrition policy in low-income countries. C. Knight.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Aylward, Francis, और Mogens Jul. Protein and Nutrition Policy in Low-income Countries. London: C. Knight, 1975.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Aylward, Francis, और Mogens Jul. Protein and Nutrition Policy in Low-income Countries. C. Knight, 1975.