000			00297nam a2200121Ia 4500
008			220721s1972 xx 000 0 und d
041			_aeng
082			_a581(5479)
100			_aI.W.R.B.
245			_aManual of wetland management
260			_aUnited Kingdom _bI.W.R.B. _c1972
999			_c81292 _d81292