000 00289nam a2200097Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
245 0 _aAnnals of the international geophysical year: V002A
260 _bPergamon Press
_aLondon
_c1957
942 _c1
999 _c61350
_d61350