Results of spirit leveling in North Dakota, 1897 to 1910, inclusive. /
Marshall, R. B. 1867-1949.
Results of spirit leveling in North Dakota, 1897 to 1910, inclusive. / R.B. Marshall, chief geographer. - Washington, Govt. Print. Off., 1911. - 23 p. : pl. ; 24 cm. - U.S. Geological survey. Bulletin 469 . - United States. Geological Survey. Bulletin ; 469. .
Issued also as House doc. no. 1463, 61st Cong., 3d sess. Includes index.
gs 11000337
North Dakota--Altitudes.
QE75 / .B9 no. 469
Results of spirit leveling in North Dakota, 1897 to 1910, inclusive. / R.B. Marshall, chief geographer. - Washington, Govt. Print. Off., 1911. - 23 p. : pl. ; 24 cm. - U.S. Geological survey. Bulletin 469 . - United States. Geological Survey. Bulletin ; 469. .
Issued also as House doc. no. 1463, 61st Cong., 3d sess. Includes index.
gs 11000337
North Dakota--Altitudes.
QE75 / .B9 no. 469