000 00325nam a2200133 a 4500
005 20140513081052.0
008 030203s19uu xx 00 eng d
050 _aP 531
_bSIM 1999
245 _aSimple machines.
260 _bCebu Green Emerald,
_c1999.
300 _aPoster
650 _aMachines--Posters
999 _c116368
_d116368