@BOOK {CARDWELL:1996a, title = {Le mildiou du mais: Guide de recherche de l'Iita, No. 56}, author = {Cardwell, K. and Adenle, V. and Kling, J. }, series = {Guide de recherche de l'Iita, No. 56}, year = {1996}, month = {December}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, }