Dulfer, E. (1974). Operational efficiency of agricultural cooperatives in developing countries. Food and Agriculture Organization of the United Nations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDulfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Rome: Food and Agriculture Organization of the United Nations, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDulfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Food and Agriculture Organization of the United Nations, 1974.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.