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02h0020644 20110317100029.0 s2010 ne ab frb |001|||eng | 9780415876032(hbk.) : CNY1519.72 NGL f------ a497 Sustainable groundwater resources in Africa : water supply and sanitation environment / editors, Yongxin Xu, Eberhard Braune. Netherlands : CRC Press/Balkema, 2010. xxii, 282 p. : ill.(some col.), maps ; ; 26 cm. "Published jointly by UNESCO." Includes bibliographical references. Water resources development ; Groundwater ; Water-supply ; Sanitation ; Human ecology Africa. ; Africa. ; Africa. ; Africa. ; Africa. aXu, Y. ; q(Yongxin) ; aBraune, Eberhard. Unesco. aCN bNGL NGL 497 X3 yllx1102 h1 ; rCNY1519.72