Dickson, Leonard Eugene, Modern elementary theory of numbers [microform] [by] Leonard Eugene Dickson ... - Chicago, Ill. University of Chicago Press [1939] - vii, 309 p. diagrs. Master microform held by: McE. Microopaque. Englewood, Colo. Microcard Editions 19--. LCCN: nuc87440023 Subjects--Topical Terms: Number theory. LC Class. No.: QA241 / .D54 Dewey Class. No.: 512.81