@book{2013,
	author = {Allen, R.G.D.},
	title = {Análisis matemático para economistas.},
	publisher = {Aguilar, },
	year = {1978.},
	series = {bib. de Cien. Soc.-sección primera:economía.},
	address = {Madrid : },
	edition = {8va.ed.},
	note = {Bibliografía p. XXI-XXII.}
}