000 00263nam a22000977a 4500
999 _c324982
_d324982
082 _a500
_bPER/M
100 _aPereira, Sheila
245 _aModern science 6
_cSheila Pereira B
260 _aNew York:
_bMcGraw-Hill Far Eastern Publishers(S) Ltd.,
_c1969
942 _cBK