Ceskosloveski Kras Czechoslovakia Ceskosloveski Kras 1949 Vol 2 parts 7/8 1951 Vol 4 " 1-9 1952 Vol 5 " 1-10 1953 Vol 6 " 1-10 1954 Vol 7 " 1-10 1955/56 Vol 8/9 1957 Nos 1-4 1958-1977 Single Volumes