@book{47135,
	author = {Ophir, Adi. and ebrary, Inc.},
	title = {Plato's invisible cities},
	publisher = {Barnes & Noble,},
	year = {1991.},
	address = {Savage, Md. :},
	note = {Revision of the author's thesis (Ph. D.)--Boston University.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10062749}
}