New plane geometry / Virgil Sampson Mallory, Mallory, Virgil Sampson, 1888-1959. Stone, John C. (John Charles), 1867-1940. Geometry, Plane. QA455 .M3 513 MAN Previous editions by John C. Stone and Virgil S. Mallory. Chicago : B.H. Sanborn & co. , c1943. c1943. 1943 Text xi, 490 p. : eng