000 | 00433nam a2200157Ia 4500 | ||
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008 | 130223s9999 xx 000 0 und d | ||
080 | _a631.81:633.18 | ||
100 | _aSmith, J., Umali, G. | ||
245 | _aProduction risk and optimal fertilizer rates : An application of the random coef | ||
260 | _aManila | ||
260 | _c1985 | ||
300 | _a13 p. | ||
440 | _aNo. 115; IRRI Research Paper S | ||
901 | _pS38424 | ||
942 |
_cB _2udc |
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999 |
_c130750 _d130750 |