000 00257nam a22001095a 4500
008 140603s1973||||xo slo d
041 0 _aslo
044 _axo
_cSK
100 1 _aBietkowski,H.
_4aut
245 _aKopernikov svet
260 _bTatran
_aBratislava
_c1973
999 _c4797
_d4797