Balazik, Ronald F.
Costs and effects of environmental protection controls regulating U.S. phosphate rock mining by Ronald F. Balazik - [Washington, D.C.] U.S. Dept. of the Interior, Bureau of Mines 1983 - ii, 37 p. 28 cm. - Information circular 8932 .
Phosphate industry--Costs--United States
Phosphate industry--Environmental aspects--United States
622 s
Costs and effects of environmental protection controls regulating U.S. phosphate rock mining by Ronald F. Balazik - [Washington, D.C.] U.S. Dept. of the Interior, Bureau of Mines 1983 - ii, 37 p. 28 cm. - Information circular 8932 .
Phosphate industry--Costs--United States
Phosphate industry--Environmental aspects--United States
622 s