SKRIVANEK, Frantisek Rubin, Josef
Caves in Czechoslovakia /Frantisek Skrivanek, Josef Rubin - [S.l] Organizing committee of the sixth international congress of 1973 - 133 p.
Includes index
83577
910.11 / SKR
Caves in Czechoslovakia /Frantisek Skrivanek, Josef Rubin - [S.l] Organizing committee of the sixth international congress of 1973 - 133 p.
Includes index
83577
910.11 / SKR