000 00308nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.459:631.61
_bFAO
245 0 _aSoil : How to conserve the soil
250 _aRev.Ed.2
260 _aRome
_bFAO
_c1976
490 _aBetter farming series 5
942 _cBK
999 _c40892
_d40892