Chinn, W. G., Steenrod, N. E., & Buehler, G. H. (1966). First concepts of topology: The geometry of mappings of segments, curves, circles, and disks. Mathematics Association of America.
Chicago Style (17th ed.) CitationChinn, William G., Norman Earl Steenrod, and George H. Buehler. First Concepts of Topology: The Geometry of Mappings of Segments, Curves, Circles, and Disks. Washington, D.C: Mathematics Association of America, 1966.
MLA (9th ed.) CitationChinn, William G., et al. First Concepts of Topology: The Geometry of Mappings of Segments, Curves, Circles, and Disks. Mathematics Association of America, 1966.
Warning: These citations may not always be 100% accurate.