Prague: Academia: Publishing House of the Czechoslovak Academy of Sciences, 1965 & 1966. First Edition. Hardcover. Small 4to. Brown cloth. Vol I lacks dust jacket; Vol II in photographic DJ. Both vols. very good, and Vol. II in a very good DJ. Mild corner bumps to books. Text clean, bright, and unmarked throughout. 220pp (Vol. I); 319pp (Vol. II). Very good / very good. Item #18743
Text in English and German. Includes papers delivered at the conference. Vol. I includes several fold-out maps and diagrams.