APA (7 वां संस्करण) प्रशस्ति पत्र

Chambers, R., Pacey, A., & Thrupp, L. A. (1989). Farmer first: Farmer innovation and agricultural research. Intermediate Technology Publications.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Chambers, Robert, Arnold Pacey, और Lori Ann Thrupp. Farmer First: Farmer Innovation and Agricultural Research. London: Intermediate Technology Publications, 1989.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Chambers, Robert, et al. Farmer First: Farmer Innovation and Agricultural Research. Intermediate Technology Publications, 1989.