APA (7 ম সংস্করণ) উদ্ধৃতি

Dülfer, E. (1974). Operational efficiency of agricultural cooperatives in developing countries. Food and Agriculture Organization of the United Nations ; [sold by] Unipub.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Dülfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Rome : New York: Food and Agriculture Organization of the United Nations ; [sold by] Unipub, 1974.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Dülfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Food and Agriculture Organization of the United Nations ; [sold by] Unipub, 1974.