00507nam a2200193Ia 4500008004100000020001800041050001400059100001800073245002800091245004900119260001500168260001600183260000900199300001400208300002700222300001000249440004600259500000800305170918s9999    xx            000 0 und d  a9780545663533  bS559 1972  aShowers, Paul  aSleep is for everyone /  cPaul Showers ; illustratede by Wendy Watson.  aNew York :  bScholastic,  c1972  aunpaged :  bcolored illustration ;  c21cm.  aLet's-read-and-find-out science, stage 1.  a480