Barr, Stephen Experiments in topology / Stephen Barr. - New York : Dover Publications, 1989 - 210 p. : ill. ; 19 cm. Reprint. Originally published: New York : Crowell, 1964.;Includes index. ISBN: 0486259331 Subjects--Topical Terms: ΤοπολογίαTopology Dewey Class. No.: 514