@book{16435,
	author = {Yuri Tatiana Varón Mendigaña (et, al)   and Yuri Tatiana Varón Mendigaña  },
	title = {Uso de Materiales no Convencionales en la Elaboración de Concretos },
	publisher = {ITFIP},
	year = {2020},
	address = {Espinal Tolima },
	note = {ITFIP}
}