Funktionalgleichungen der Theorie der geometr. Objekte. From the book collection of H. Steinhaus.

ACZÉL J[anos], GOŁĄB S[tanisław] - Funktionalgleichungen der Theorie der geometrischen Objekte. Warsaw 1960; PWN. 8, pp. 172 + p. [1] - errata. o.p. f., wraps. Mathematical Monographs, vol. 39.
Minor scratches and such loss to the spine of the wrapper, internally very good condition. Piece from the book collection of Prof. Hugo Steinhaus (pencil inscription "Prof. Steinhaus" on the front cover).