000 00315nas a2200121Ia 4500
008 170101s2017 xx 000 0 und d
044 _aU.S.A.
245 0 _aPOPULAR Science
260 _bPopular Science Publishing
_aNew York
270 _aPopular Science Publishing
362 _aJan - Dec,1968
942 _2ddc
_cP
999 _c162181
_d162181