@book{15408,
	author = {Wynar, Bohdan S.},
	title = {Introduction to cataloging and classification /},
	publisher = {Libraries Unlimited,},
	year = {1967.},
	series = {Library Sscience Text},
	address = {Littleton, Colotado :},
	edition = {3a ed.},
	note = {Cuarta reimpresión del año 1969.}
}