Dobbs, David E. A modern course on the theory of equations David E. Dobbs and Robert Hanks ; interior artwork by Jose Garcia. - Passaic, NJ Polygonal Pub. House c1980. - vii, 216 p. ill. 24 cm. Includes bibliographies and index. ISBN: 0936428031 LCCN: 80013487 Subjects--Topical Terms: Equations, Theory of. LC Class. No.: QA211 / .D63 Dewey Class. No.: 512.9/4