Breuer, Josef. Introduction to the theory of sets/ Translated by Howard F. Fehr. - Englewood Cliffs, N.J.: Prentice-Hall, 1958. - 108 p.: illus., 22 cm. - Prentice-Hall mathematics series . Translation of: Einführung in die Mengenlehre. Includes bibliography. LCCN: 58008673 /L/r902 Nat. Bib. No.: GB58-8148 Subjects--Topical Terms: Set theory. Dewey Class. No.: 511.322 / B846i