Christie, Dan E. 1915- Basic topology : a developmental course for beginners / Dan E. Christie. - xi, 256 pages : illustrations ; 24 cm. Includes index. Bibliography: p. 239-240. ISBN: 0023224401 LCCN: 75011820 Subjects--Topical Terms: Topology. LC Class. No.: QA611 / .C439 Dewey Class. No.: 514