000 00290nam a2200121Ia 4500
008 170101s1972 xx 000 0 und d
082 _a591.53 CAM
100 _aCampbell J.W.
245 0 _aNitrogen Matabolism and the Environment
260 _c1972
300 _a318 p.
942 _2ddc
_cB
999 _c461666
_d461666