@book{147003,
	author = {Tuma, Jan J. and Sánchez Bolivar, Guillermo.},
	title = {Teoría y problemas de análisis estructural... / },
	publisher = {McGraw-Hill, },
	year = {[1973]},
	series = {Serie de Compendios Schaum},
	address = {México, etc. : }
}