Lowry, David W. Heath general mathematics / [electronic resource] / David W. Lowry, Earl G. Ockenga, Walter E. Rucker.. — Lexington, Mass. : : D.C. Heath,, c1989.. — ix, 518 p. : : ill. (some col.) ; 24 cm. Includes index. ISBN: 0669164135 9780669164138 Subjects--Topical Terms: Mathematics. LC Class. No.: QA107 / .L6879 1989