Gustafson, R. David 1936- Elementary plane geometry / R. David Gustafson, Peter D. Frisk. - 2nd ed. - New York : Wiley, c1985. - x, 358 p. : ill. ; 25 cm. Includes index. ISBN: 0471890472 LCCN: 84007259 Subjects--Topical Terms: Geometry, Plane. LC Class. No.: QA455 / .G888 1985 Dewey Class. No.: 516.22