Chemical quality of the water

von Petri, L. R.
Veröffentlicht in Keech, C. F. Geology and ground-water resources of Fillmore County, Nebraska (1968)

Water resources of the Wichita area, Kansas : a description of the water resources of the area, their present use, and their potential for additional development

von Petri, L. R.
Veröffentlicht 1964