000 00353nam a2200145Ia 4500
008 230627s9999 xx 000 0 und d
050 _aGY QE1.I57
245 0 _a27th International geology congress: general proceedings
260 _aMoscow
260 _bVneshtorgizdat
260 _c1987
300 _a339p.
300 _c30cm.
650 _aGeology
999 _c125759
_d125759