Phosphate rock availability--domestic a minerals availability program appraisal
Fantel, R. J.
Phosphate rock availability--domestic a minerals availability program appraisal by R.J. Fantel, D.E. Sullivan, and G.R. Peterson - [Washington, D.C.] U.S. Dept. of the Interior, Bureau of Mines 1983 - iv, 57 p. ill. 28 cm. - Information circular 8937 .
Phosphate rock--United States
622 s
Phosphate rock availability--domestic a minerals availability program appraisal by R.J. Fantel, D.E. Sullivan, and G.R. Peterson - [Washington, D.C.] U.S. Dept. of the Interior, Bureau of Mines 1983 - iv, 57 p. ill. 28 cm. - Information circular 8937 .
Phosphate rock--United States
622 s