000 00812ctm a2200217u 4500
005 20171010072919.0
007 ta
008 090520|||||||||||||||||||||||||||||eng|u
020 _a978-1-59920-085-9
_cSpring 2009 World Almanac Education $24.40
100 1 _aOxlade, Chris.
245 1 0 _aScrews
260 0 _aMankato, MN
_bSmart Apple Media
_c2008
300 _b32p.: col. photos
520 _aThere are screws all around us - from the cap on a bottle to the faucet in a kitchen. But what are screws and how do they work?
521 1 _aElementary
650 4 _aScrrews.
650 4 _aSimple machines.
961 w l _t12
999 _c52838
_d51508