00377nam a2200157Ia 4500008004100000020001500041082001300056100001700069245002500086250000800111260003500119300000700154500002400161650001200185700002200197230524s9999    xx            000 0 und d  a8122403456  a537bERI  aErich Gelder 4aThe Transistor Pi 21  a1ST  aNEW DELHIbWiley Easternc1991  a68  aQuantity Number:  2  aPhysics  aKarl Heinz Reiter