%0 Book %A Beurko, Sancho de, 1908-1989 %D s.a %G No linguistic content %T [Trincheras en Altamira (Galdakao)] [Material gráfico] %U https://www.euskariana.euskadi.eus/euskadibib/eu/bib/record.do?id=1395919 %U https://www.euskariana.euskadi.eus/euskadibib/eu/media/group.do?path=1074568