Freud, Robert Number theory / Robert Freud,, Edit Gyarmati - Providence, Rhode Island, USA : American Mathematical society, 2020. - x, 549 pages ; 26 cm. - The Sally series : pure and applied undergraduate texts . Includes index. ISBN: 9781470452759 Pbk. Subjects--Topical Terms: Number theory LC Class. No.: QA 241 F74 2020 CIRC