Elemi Halmazelmelet & Halmazelmeleti Feladatok

Muszaki Konyvkiado: Budapest, 1981. Second edition. Large octavo or small quarto in yellow DJ; 199 p Small tear to DJ protected in archival brodart, very gentle bumped corners, else near fine(+) in very good+ DJ. Hardcover. ISBN: 9631038572

In Hungarian. Mathematics;Science. Translation of: Naive Set Theory. // Rare; no translated copies found in WorldCat.