000			00310nam a2200133Ia 4500
008			160316s1978 xxu||||| |||| 00| 0 eng d
020			_a
100			_aDonald R. Nielsen
245			_aNitrogen In The Environment
250			_a1st
260			_aNEW YORK _bACADEMIC PRESS _c1978
300			_a528
700			_a _a
999			_c14155 _d14155