Hayes, C. W. 1859-1916. The state geological surveys of the United States. / Compiled under the direction of C.W. Hayes. - Washington, Govt. Print. Off., 1911. - 177 p. ; 24 cm. - U.S. Geological survey. Bulletin 465 . - United States. Geological Survey. Bulletin ; 465. . LCCN: gs 11000156 Subjects--Topical Terms: Geological surveys. LC Class. No.: QE75 / .B9