Sketch geological map of the city of Rossland and vicinity, B.C., showing mining claims [cartographic material] / compiled by W. H. Boyd ; approximate geological boundaries by G. H. Young.
MLA
Boyd, W. H. Sketch Geological Map of the City of Rossland and Vicinity, B.C., Showing Mining Claims [Cartographic Material] / Compiled by W. H. Boyd ; Approximate Geological Boundaries by G. H. Young. Geological Survey of Canada, 1906. https://collections.library.yale.edu/catalog/15827354.
APA, 6th edition
Boyd, W. H. (1906). Sketch geological map of the city of Rossland and vicinity, B.C., showing mining claims [cartographic material] / compiled by W. H. Boyd ; approximate geological boundaries by G. H. Young. [Maps]. Geological Survey of Canada, https://collections.library.yale.edu/catalog/15827354.