@book{83453,
	author = {Valverde, Bernal E. and Caseley, J. C.},
	title = {Prevención y manejo de malezas resistentes a herbicidas en arroz:},
	publisher = {Cámara de Insumos Agropecuarios de Costa Rica,},
	year = {2000},
	address = {San José, C.R. :}
}