000 00273nam a2200109Ia 4500
008 180611s9999||||xx |||||||||||||| ||und||
041 _aen
100 _aBRADWEIN F.Paul
245 0 _aConcepts in science
260 _bU.S.A, California state depar
_ctment of ed1966
942 _cLL
999 _c999
_d999