00462nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067100002500076245004600101260005200147300001000199440003600209650003300245650001400278Para_7046CHAP220125s1939    xx            000 0 und d  a205873  cCHAP  aWilliams, J. Stewart  aPhosphate in Utah /c J. Stewart Williams  aLogan, Utah :b Agricultural Experiment Station  a44 p.  aUtah. Agr. Exp. Sta. Bull.; 290  aFertilizantes x fosfatos en  aFosfatos