00640cam a22001577a 4500 180718b1991 xxu||||| |||| 00| 0 eng d Wx67 R526 Riverson, John D.N. Intermediate means of transport in Sub-Saharan Africa: its potential for improving rural travel and transport by John D.N. Riverson and Steve Carapetis Washington, D.C. The World Bank 1991 27p. World bank technical paper; no.161, Africa technical department series Rural Roads - Africa, Sub-Saharan Rural Transport - Africa, Sub-Saharan Carapetis, Steve 226691 226691 0 0 0 0 IIPA IIPA 1993-06-01 Wx67 R526 WB3321 2018-07-20 2018-07-20 WB