00687nam a22001931 4500 gs 28000235 DLC 20260227111332.0 870217m19271928sp abcf 100 0 fre c gs 28000235 U.S. Geol. Survey Libr./ICU ICU DLC QE1 .I6 1926 International Geological Congress (14th : 1926 : Madrid) Comptes rendus de la XIVe session, en Espagne, 1926 ... Madrid, Gráficas reunidas, 1927-28. 4 v. illus., plates (incl. fold. maps) ports., fold. tables. 27 cm. At head of title: Congrès géologique international. Geology Congresses. 26648 26648