000			00302nam a2200133Ia 4500
008			130223s9999 xx 000 0 und d
245			_aSoil phosphorus
260			_aLondon
260			_c1965
300			_a158 p.
440			_aNo. 13; Great Britain Ministry
901			_pS16242
942			_cB _2udc
999			_c133695 _d133695