000			00364nam a2200157Ia 4500
008			160615s9999 xx 000 0 und d
100			_aCOATES(R F W)
245			_aModern communication systems
260			_aLondon
260			_bThe Macmillan Press Ltd
260			_c1975
300			_av p. + 292
942			_cBooks
999			_c10942 _d10942