000 00305nam a2200121Ia 4500
008 170101s1987 xx 000 0 und d
082 _a589.704133 GAL
100 _agallon John R.
245 3 _aAn Introduction to Nitrogen Fixation
260 _ac
_bCAssel
_c1987
300 _a276 p.
942 _2ddc
_cB
999 _c1023116
_d1023116