Sixtymile and Ladue rivers area, Yukon,
Cockfield, William Egbert, 1890-
Sixtymile and Ladue rivers area, Yukon, by W. E. Cockfield. - Ottawa, Thomas Mulvey, printer, 1921. - 3 p. l., 60 p. VI pl., fold. col. map, tables. 25 cm. - Canada. Geological Survey. Memoir 123. no. 105, Geological series .
Published also as thesis (Ph. D.) Princeton University, 1918.
gs 21000302
Geology--Yukon.
QE185 / .A2 no. 123
Sixtymile and Ladue rivers area, Yukon, by W. E. Cockfield. - Ottawa, Thomas Mulvey, printer, 1921. - 3 p. l., 60 p. VI pl., fold. col. map, tables. 25 cm. - Canada. Geological Survey. Memoir 123. no. 105, Geological series .
Published also as thesis (Ph. D.) Princeton University, 1918.
gs 21000302
Geology--Yukon.
QE185 / .A2 no. 123