@book{19271,
	author = {Browning, Douglas,},
	title = {Ontology and the practical arena /},
	publisher = {Pennsylvania State University Press,},
	year = {1990.},
	address = {University Park :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1309/89008369-b.html}
}