@BOOK {KANG:1992a, title = {Agriculture en couloirs; gestion du sol et production: Guide de recherche de l'Iita, No. 29}, author = {Kang, B. T. }, series = {Guide de recherche de l'Iita, No. 29}, year = {1992}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, note = {28p.}, }