000 00313nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aSubba Rao (NS) and Rodriguez - Barrueco(C )
245 0 _aSymbiosis in Nitrogen- fixing trees
260 _bOxford and IBH
260 _c1993
365 _b450
942 _cBK
999 _c218179
_d218179