The Nelchina-Susitna region, Alaska,
Chapin, Theodore Sheffield, 1876-
The Nelchina-Susitna region, Alaska, by Theodore Chapin. - Washington, Govt. print. off., 1918. - 67 p. illus., x pl. (part fold., incl. 2 maps in pocket) diagrs. 24 cm. - U.S. Geological survey. Bulletin 668 .
At head of title: Department of the interior.
gs 19000099 //r40
Geology--Alaska.
QE75 / .B9 no. 668
The Nelchina-Susitna region, Alaska, by Theodore Chapin. - Washington, Govt. print. off., 1918. - 67 p. illus., x pl. (part fold., incl. 2 maps in pocket) diagrs. 24 cm. - U.S. Geological survey. Bulletin 668 .
At head of title: Department of the interior.
gs 19000099 //r40
Geology--Alaska.
QE75 / .B9 no. 668