00686nam a2200181 a 4500008004100000020001500041050001600056100001900072245006300091260003000154300002300184350000900207650002000216650002700236995009200263999001700355952013200372120416s1987    ||||||||||||||||| ||    u  a0863410995  aTK 6553 Pro  aKerr, Donald E10aPropagation of short radio wavescedited by Donald E. Kerr  aLondon:bPeregrinusc1987  axvii, 737p. : ill.  a0.00  aSHORTWAVE RADIO  aRADIO WAVE PROPAGATION  D0.00FCBU-MAIN LIBRARY (Kitwe)H1I8.90UAVAILABLEZMain Library Open Access Collection  c55100d55100  00102lcc4070a001b001cMain Library Open Access Collectiond2022-11-30l0oTK 6553 Prop017735r2022-11-30w2022-11-30y002