000			00391nam a2200157Ia 4500
008			160615s9999 xx 000 0 und d
100			_aSagan(Carl) Ed
245			_aCommunications with extraterrestrial intelligence (CETI)
260			_aCambridge
260			_bThe MIT Press
260			_c1973
300			_axxxiii p. + 428
942			_cBooks
999			_c10332 _d10332