000 00335nam a2200145Ia 4500
020 _a9788121933278
082 _b363
_a500
100 _a"RICHARDS, JON"
245 0 _aSCIENCE FACTORY FORCES & SIMPLE MACHINES
260 _bS. CHAND
_c0
300 _a0
944 _cBK
999 _c95461
_d95461