00264nam a2200109Ia 4500082002600000100002200026245003900048260004200087300001500129500000500144700000500149  a658.80963096bW568.AM  aWhetham, Edith H.  aAgricultural marketing in Africab  aLondonbOxford University Pressc1972  axii, 240p.  a  a