000 00279nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a631.417 L7.2
245 _aSoil organic matter studies. v. 2
260 _b"IAEA, 1977"
300 _a388p.
650 _aSoils
942 _cBK
999 _c63131
_d63131