000 002770000a22001330004500
245 _aGeneral science made easy
100 _aMasson, L.T.
250 _arev. ed.
260 _aNew York
_bDell
_c1964
300 _a320 p.
080 _a5
_bM3
041 _aEN
942 _cBK
999 _c52976
_d52976