000 | 00371nam a2200133Ia 4500 | ||
---|---|---|---|
008 | 130225s9999 xx 000 0 und d | ||
080 |
_a631.452 _bP83S |
||
100 | _aPortch, Sam and Hunte, Arvel | ||
245 | 2 | _aA Systematic approach to soil fertility evaluation and improvement | |
260 |
_aHongkong _bCanpotex _c0 |
||
300 | _a62p. | ||
901 | _a221122 | ||
942 |
_cB _2udc |
||
999 |
_c12764 _d12764 |