000 00395nam a2200145Ia 4500
008 100415s9999 xx 000 0 und d
082 _b21054
_a521.1
100 _aHYNEK, J.A.
245 _aChallenge of the universe
260 _aNEW YORK
_c1962
_bMCGRAW-HILL BOOK COMPANY, INC.
365 _b1
630 _aChallenge of the universe
730 _aChallenge of the universe
942 _cBOOK
999 _c603936
_d603933