000 00320nam a2200133Ia 4500
008 160710s1987 xx 000 0 und d
020 _a0824777514
082 _a589.9 ELK
100 _aELKAN,GH
245 _aSYMBIOTIC NITROGEN FIXATION TECHNOLOGY
260 _bMARCEL DEKKER
_c1987
300 _a440
942 _2ddc
_cB
999 _c61363
_d61363