@book{11797,
	author = {Philippakis, Andy S. and Kazmier, Leonard J.},
	title = {Cobol avanzado.},
	publisher = {[s.n.],},
	year = {1990.},
	address = {[s.l.]:},
	edition = {2a ed.},
	note = {Contiene ejercicios.}
}