00423nam a2200169Ia 450000500170000000800410001702000180005804100080007608200090008410000170009324500510011025000060016126400400016730000260020765000060023365500140023920260922095448.0260922s9999 xx 000 0 und d a1-86418-090-0 aeng a032.1 aKNAPP, Brian10aScience In Our World 26 : Waves And Vibrations a0 aSingaporebRegency Publishingc1996 a48 hlm.bilus.c26 cm 4a0 aGrade 7-9