@book{45541,
	author = {Thimm, Heinz-Ulrich.},
	title = {Development projects in the Sudan; an analysis of their rereports with implications for research and training in arid land management},
	publisher = {The United Nations University,},
	year = {1979},
	series = {NRTS, 1/UNUP},
	address = {Tikyo :}
}