APA (7 वां संस्करण) प्रशस्ति पत्र

Obenchain, J., & Spark, A. (2016). Food policy: Looking forward from the past. CRC Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Obenchain, Janel, और Arlene Spark. Food Policy: Looking Forward from the Past. Boca Raton, FL: CRC Press, 2016.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Obenchain, Janel, और Arlene Spark. Food Policy: Looking Forward from the Past. CRC Press, 2016.