...Phosphate resources of Florida,
Mansfield, George Rogers, 1875-1947.
Phosphate resources of Florida, by George R. Mansfield. - Washington, U.S. Govt. print off., 1942. - iv, 82 p. incl. illus. (diagrs.) tables. l8 fold. pl. (incl. mpas) 24 cm. - U. S. Geological survey. Bulletin 934 .
At head of title: U. S. Dept. of the interior. Harold L. Ickes, secretary. Geological survey, W. C. Mendenhall, director. Four folded maps are in pocket. Bibliographical foot-notes.
gs 43000014
Phosphates--Florida.
QE75 / .B9 no. 934
Phosphate resources of Florida, by George R. Mansfield. - Washington, U.S. Govt. print off., 1942. - iv, 82 p. incl. illus. (diagrs.) tables. l8 fold. pl. (incl. mpas) 24 cm. - U. S. Geological survey. Bulletin 934 .
At head of title: U. S. Dept. of the interior. Harold L. Ickes, secretary. Geological survey, W. C. Mendenhall, director. Four folded maps are in pocket. Bibliographical foot-notes.
gs 43000014
Phosphates--Florida.
QE75 / .B9 no. 934