Tshibaka, Tshikala B. Food production in a land-surplus, labor-scarce economy : the Zairian Basin - Washington : International Food Policy Research Institute, 1989 - 70 p. - Research report ; 74 . - International Food Policy Research Institute . - Research report ; 74 . LCCN: 4515 Subjects--Topical Terms: Agricultura--Aspectos economicos--Zaire.Agricultura--Trabajadores--Zaire.