Chinn, William G. First concepts of topology : the geometry of mappings of segments, curves, circles, and disks / by W. G. Chinn and N. E. Steenrod. - [Washington] : Mathematical Association of America, c1966 - viii, 160 p. : ill. - New mathematical library ; 18 . Subjects--Topical Terms: Topology. LC Class. No.: QA611 / .C42 Dewey Class. No.: 513/.83