000 00266nam a22001097a 4500
082 _a500
_bHER
100 _aHerman
_aSchneider Nina
245 _aScience For Today And Tomorrow
260 _aCalifornia
_bD . C Heath And Company
_c1955
300 _a378 p.
942 _cL
999 _c17326
_d17326