000			00315nam a2200133Ia 4500
008			180710s9999 xx 000 0 und d
020			_a47243
082			_a910.018 _bNET
100			_aDalton, Roger
245			_aNETWORKS in geography
260			_aLondon _bGeorge Philip _c1973
300			_aiv, 60 p.
942			_cR
999			_c72648 _d72648