APA
"United Nations . T. C. F. D. (. O., "United Nations . T. C. F. D. (. O., . (1988). Ground water in North and West Africa. New: York United Nations U S A.
Chicago
"United Nations Technixal Co-Operation For Development (Deptt Of-)", "United Nations Technixal Co-Operation For Development (Deptt Of-)", . 1988. Ground water in North and West Africa. New: York United Nations U S A.
Harvard
"United Nations . T. C. F. D. (. O., "United Nations . T. C. F. D. (. O., . (1988). Ground water in North and West Africa. New: York United Nations U S A.
MLA
"United Nations Technixal Co-Operation For Development (Deptt Of-)", "United Nations Technixal Co-Operation For Development (Deptt Of-)", . Ground water in North and West Africa. New: York United Nations U S A. 1988.
