Bernays, Paul. Axiomatic set theory - 2 ed. - Amsterdam : North-Holland, 1968 - 227 p. - Studies in logic and the foundation of mathematics . - Studies in logic and the foundation of mathematics . LCCN: 15467 Subjects--Topical Terms: Grupos--TeorĂa de los. Dewey Class. No.: 512.86 / B4 1968