000 00323nam a2200109Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aWilson,Mitchell
245 0 _aAmerican science and invention-Pictorin history
260 _bSiman and Schuster
_aNew york
_c1954
942 _c1
999 _c44019
_d44019