@book{97403,
	author = {Cordero Salas, Paula and Sepúlveda, Sergio. and Instituto Interamericano de Cooperación para la Agricultura.},
	title = {Sistemas de gestión medio ambiental :},
	publisher = {IICA,},
	year = {2002},
	series = {Cuadernos técnicos},
	address = {San José, C.R.,}
}