Author
Geological Survey (U.S.),
3
Geological Survey (U.S.)
2
Plafker, George, 1929-
2
Bain, Harry Foster, 1872-1948
1
Berdan, Jean Milton
1
Berdan, Jean Milton,
1
Copeland, M. J. 1928-
1
Dumoulin, Julie A.,
1
Gannett, Henry, 1846-1914
1
Gannett, Samuel S. 1861-1939
1
Mamet, Bernard L.
1
Mamet, Bernard L.,
1
Moffit, Fred H. 1874-1958?
1
Moore, Thomas E.
1
Moore, Thomas E.,
1
Nilsen, Tor Helge
1
Nilsen, Tor Helge,
1
Till, Alison B.,
1
Williams, Henry Shaler, 1847-1918
1