@BOOK {OKOCHA:1991, title = {Criblage au champ pour la resistance a la cecidomyie africaine du riz: Guide de recherche de l'Iita, No. 34}, author = {Okocha, P. I. * and Ukwungwu, M. N. * and Joshi, R. C. }, series = {Guide de recherche de l'Iita, No. 34}, year = {1991}, month = {December}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, note = {16p.}, }