000 00326nam a2200121Ia 4500
008 170101s1950 xx 000 0 und d
082 _a631.81 COL
100 _aCollings Gilbert H.
245 0 _aCommercial Fertilizers : Their Sources and Use
260 _aNew York
_bPhilaDELPHIYA
_c1950
300 _a522 p.
942 _2ddc
_cB
999 _c23866
_d23866