Rocenka : annual report / Geological Survey of Slovak Republic=Geologicka Sluzba Slovenskej Rebubliky. - [Bratislava]: [Geological Survey of Slovak Republic], [c2000]. - 42 p. : ill., maps, tables ; 30 cm. ISBN: 808897416X Subjects--Topical Terms: GeologyGeology, Economic Dewey Class. No.: 551.9