Hänvisningar gällande denna post
APA-referensUnited Nations. Department of Technical Co-operation for Development & United Nations. Economic Commission for Africa. (1988). Ground water in North and West Africa. United Nations.
Chicago-stil citatUnited Nations. Department of Technical Co-operation for Development och United Nations. Economic Commission for Africa. Ground Water in North and West Africa. New York: United Nations, 1988.
MLA-referensUnited Nations. Department of Technical Co-operation for Development och United Nations. Economic Commission for Africa. Ground Water in North and West Africa. United Nations, 1988.
Harvard-stil citatUnited Nations. Department of Technical Co-operation for Development & United Nations. Economic Commission for Africa. 1988. Ground water in North and West Africa. New York: United Nations.