000 00318nam a2200145Ia 4500
008 160615s9999 xx 000 0 und d
100 _aCRAMMER(J L) Ed
245 _aScience news. Vol.12
260 _bPenguin Books
260 _c1949
300 _a158 p.
942 _cBooks
999 _c2275
_d2275