00421nam a2200169Ia 450000500170000000800410001702000180005804100080007608200090008410000170009324500490011025000060015926400400016530000260020565000060023165500140023720260922095449.0260922s9999    xx            000 0 und d  a1-86418-066-8  aeng  a032.1 aKNAPP, Brian10aScience In Our World 23 : Science And Design  a0  aSingaporebRegency Publishingc1996  a48 hlm.bilus.c26 cm 4a0  aGrade 7-9