Gypsum deposits of the United States,
Stone, Ralph W. 1876-1964.
Gypsum deposits of the United States, by R.W. Stone and others. - Washington, Govt. print. off., 1920. - 326 p. illus., 36 pl. (incl. maps: part fold.) tables, diagrs. 23 cm. - U.S. Geological survey. Bulletin 697 .
Bibliography: p. 309-316.
gs 20000418
Mines and mineral resources--United States.
Gypsum.
QE75 / .B9 no. 697
Gypsum deposits of the United States, by R.W. Stone and others. - Washington, Govt. print. off., 1920. - 326 p. illus., 36 pl. (incl. maps: part fold.) tables, diagrs. 23 cm. - U.S. Geological survey. Bulletin 697 .
Bibliography: p. 309-316.
gs 20000418
Mines and mineral resources--United States.
Gypsum.
QE75 / .B9 no. 697