Review of the phosphate fields of Idaho, utah and wyoming
Waggaman, W.H.
Review of the phosphate fields of Idaho, utah and wyoming - Washington 1910 - 1-48 p. - Fields United States Department of Agriculture, Bureau of Soils. Bulletin No. 69 .
Review of the phosphate fields of Idaho, utah and wyoming - Washington 1910 - 1-48 p. - Fields United States Department of Agriculture, Bureau of Soils. Bulletin No. 69 .