APA (7e ed.) Bronvermelding

Dulfer, E. (1974). Operational efficiency of agricultural cooperatives in developing countries. Food and Agriculture Organization of the United Nations.

Chicago (17e ed.) Bronvermelding

Dulfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Rome: Food and Agriculture Organization of the United Nations, 1974.

MLA (9e ed.) Bronvermelding

Dulfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Food and Agriculture Organization of the United Nations, 1974.