@book{16491,
	author = {Laguna Rincón Mateo Andrés and Lina Maria Varela Gutierrez},
	title = {El Acero en la Construcción y Estructuras Metálicas },
	publisher = {ITFIP},
	year = {2020},
	address = {Espinal - Tolima },
	note = {ITFIP }
}