@book{23680,
	author = {Churchill, Ruel Vanse. and Brown, James W.},
	title = {Variables complejas y sus aplicaciones},
	publisher = {McGraw-Hill,},
	year = {1978 (c.1966)},
	address = {México, D.F. :},
	note = {Trad. de la 3ed. en inglés de 1974}
}