@book{4127,
	author = {MEXICO. [LEYES, ETC.].},
	title = {LEY GENERAL DEL EQUILIBRIO ECOLOGICO Y LA  PROTECCION AL AMBIENTE},
	publisher = {PORRUA},
	year = {1993},
	series = {COLEC. LEYES Y CODIGOS DE MEXICO},
	address = {MEXICO: },
	edition = {8}
}