Bell, Robert J An Elementary Treatise on Coordinate Geometry of Three Dimensions / Robert J Bell. - 4th ed. - Madras : Macmillan, 1996. - xvii, 377, xlviii p. : ill.; 21 cm. Includes index. ISBN: 0333919718 Subjects--Topical Terms: Geometry Dewey Class. No.: 516.5 / BEE