@BOOK {BUCKLAND:1998, title = {Analyse sexospecifique dans la production agricole: Guide de recherche de l'Iita, No. 58}, author = {Buckland, L. and Haleegoah, J. }, series = {Guide de recherche de l'Iita, No. 58}, year = {1998}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, note = {27p.}, }