000 00265nam a2200109Ia 4500
008 191031s9999 xx 000 0 und d
245 0 _aJournal of Soil Science Vol. 18
260 _b"S.N. Reprints, New Delhi"
260 _c1967
365 _b140.00
942 _cBK
999 _c204254
_d204254