Sixtymile and Ladue rivers area, Yukon,
by W. E. Cockfield ...
APA Citation
Cockfield, W. E. (William Egbert)., Geological Survey of Canada. (1921). Sixtymile and Ladue rivers area, Yukon. Ottawa: T. Mulvey, Printer.
MLA Citation
Cockfield, W. E. (William Egbert), b. 1890, and Geological Survey of Canada. Sixtymile And Ladue Rivers Area, Yukon. Ottawa: T. Mulvey, Printer, 1921.
Warning: These citations may not always be complete (especially for serials).