Hoffer, Alan R. Geometry : : a model of the universe / [electronic resource] / Alan R. Hoffer.. — Menlo Park, Calif. : : Addison-Wesley,, 1979.. — xi, 564 p. : : ill. ; 24 cm. Includes index. ISBN: 0201029588 9780201029581 Subjects--Topical Terms: Geometry--Study and teaching (Secondary) Dewey Class. No.: 516