@book{1806,
	author = {MEGCHUM ALONSO, MARIA GUADALUPE. and INSTITUTO TECNOLOGICO DE TUXTEPEC.},
	title = {APUNTES DE ESTEQUIOMETRIA PARA EL NIVEL  MEDIO SUPERIOR/ },
	publisher = {EL AUTOR},
	year = {1986},
	address = {TUXTEPEC, OAX.: }
}