@book{5576,
	author = {Boldt, Roger and Charpar, Gerald},
	title = {Thesaurus used in the program in urban and regional planning;  University of Iowa},
	publisher = {M. Vance, },
	year = {1971.},
	address = {Monticello : },
	note = {Faltan páginas 53 y 55.- }
}