00609nam a2200217Ia 4500008004100000020001600041100002200057245002400079245002500103260001500128260002000143260000900163300001600172300002700188300001600215650001600231650002500247700000800272999001900280952009200299160803s9999    xx            000 0 und d  a0 516239619  aDouglas, Lloyd G.  aWhat is a pulley? /  cby Lloyd G. Douglas.  aNew York :  bScholastic Inc.  c2002  a24 pages :   bcolor illustrations ;   c16 x 19 cm.  aPulleys --   xJuvenile literature.  a300  c299400d299400  001040aSSISBbSSISBcLEXd2016-08-03l0pSC-1326r2016-08-03 00:00:00w2016-08-03yBK