000 00352nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aSjeldrick, W.F., Stier, H.
245 _aWorld potash survey
260 _aWashington
260 _c1978
300 _a66 p.
440 _aNo. 293; World Bank Staff Work
901 _pS31161
942 _cB
_2udc
999 _c137080
_d137080