Iowa. State University of Science and Technology, Ames. Center for Agricultural and Economic Development. (1965). Economic development of agriculture: The modernization of farming. Iowa State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIowa. State University of Science and Technology, Ames. Center for Agricultural and Economic Development. Economic Development of Agriculture: The Modernization of Farming. Ames: Iowa State University Press, 1965.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIowa. State University of Science and Technology, Ames. Center for Agricultural and Economic Development. Economic Development of Agriculture: The Modernization of Farming. Iowa State University Press, 1965.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.