Global international waters assessment :

Global international waters assessment : regional assessment 43 : Lake Chad basin. / United Nations Environmental Programme. - Sweden : University of Kalmar, c2004. - 129 p. : ill. (col.) : 28 cm. - GIWA Regional assessment 43 .


United Nations Environment Programme Global International Waters Assessment


Environmental protection--International cooperation
Water supply --International cooperation
Eutrophication.
Marine pollution


Lake Chad basin

GC1085 / .L35 2004