000 00292nam a2200109Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aBuedeler, Werner
245 0 _aInternational Geophysical year
260 _bUnesco
_aParis
_c1957
942 _c1
999 _c46068
_d46068