APA (7 ম সংস্করণ) উদ্ধৃতি

Europe, U. N. E. C. f. (1976). Long term planning of water management. United Nations.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Europe, United Nations. Economic Commission for. Long Term Planning of Water Management. United Nations, 1976.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Europe, United Nations. Economic Commission for. Long Term Planning of Water Management. United Nations, 1976.