000			00312nam a2200133Ia 4500
008			160316s1968 xxu||||| |||| 00| 0 eng d
020			_a
100			_aWalt, Kenneth E F
245			_aEcology And Resource Management
250			_a
260			_aNew York _bMcGraw Hill Book _c1968
300			_a450
700			_a _a
999			_c17874 _d17874