Snodgrass, M. M., & Wallace, L. T. (1980). Agriculture, economics, and resource management (2d ed.). Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSnodgrass, Milton Moore, और Luther T. Wallace. Agriculture, Economics, and Resource Management. 2d ed. Englewood Cliffs, N.J.: Prentice-Hall, 1980.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSnodgrass, Milton Moore, और Luther T. Wallace. Agriculture, Economics, and Resource Management. 2d ed. Prentice-Hall, 1980.