United Nations Development Programme. (1982). Ground-water survey: The hydrogeologic conditions of Bangladesh. United Nations.
Chicago Style (17th ed.) ZitazioaUnited Nations Development Programme. Ground-water Survey: The Hydrogeologic Conditions of Bangladesh. New York: United Nations, 1982.
MLA (9th ed.) ZitazioaUnited Nations Development Programme. Ground-water Survey: The Hydrogeologic Conditions of Bangladesh. United Nations, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.