CAVES AND CAVE DIVING. Translated by Edmund J. Mason.
London, Robert Hale, 1956. Red cloth with printed title. In good,slightly chipped and creased dustwrapper. Edges spotted, but a good copy. pp. 175. More
London, Robert Hale, 1956. Red cloth with printed title. In good,slightly chipped and creased dustwrapper. Edges spotted, but a good copy. pp. 175. More
London, The Scientific Book Club, Not Dated. Yellow cloth with printed title. In good dustwrapper, lightly faded to spine. Undated, but printed soon after the First Edition of 1956. A good copy. pp. 175. More