00512nam a2200193Ia 4500008004100000020001800041050001500059100001900074245003100093245005200124260001500176260001600191260000900207300001500216300002700231300001000258300004200268500000800310170918s9999    xx            000 0 und d  a9780439148801  bB4535 2000  aBerger, Melvin  aDo tornadoes really twist?  cby Melvin Berger ; illustrated by Higgins Bond.  aNew York :  bScholastic,  c2000  a48 pages :  bcolored illustration ;  c20cm.  eScholastic question & answer series /  a770