000 00285nam a2200121 4500
008 160616s 000 0
245 _aCommunication satellites
100 _aMueller, G.E.
100 _aSpangler, E.R.
500 _aD75,3 K4
942 _cBK
_2BK10851
080 _a621.9 MUE
999 _c10851
_d10851