Dulfer, E. (1974). Operational efficiency of agricultural cooperatives in developing countries. Food and Agriculture Organization of the United Nations.
芝加哥风格引文Dulfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Rome: Food and Agriculture Organization of the United Nations, 1974.
MLA引文Dulfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Food and Agriculture Organization of the United Nations, 1974.
警告：这些引文格式不一定是100％准确.