Foundations of Potential Theory.
Berlin: Julius Springer, 1929. First edition, 8vo, (x), 384, (2) pp. Bookplate to fly leaf. Original yellow cloth, some light soiling, spine faded. More
Berlin: Julius Springer, 1929. First edition, 8vo, (x), 384, (2) pp. Bookplate to fly leaf. Original yellow cloth, some light soiling, spine faded. More