MLA

Geological, and Natural History Survey of Canada. Placer Mines of Harvey Creek in Cariboo District, British Columbia / Surveyed and Drawn by Amos Bowman, Mining Engineer, Assisted by James McEvoy. Geological and Natural History Survey of Canada, 0AD. https://collections.library.yale.edu/catalog/15536353.

APA, 6th edition

G., & of Canada, N. H. S. (0 C.E.). Placer mines of Harvey Creek in Cariboo District, British Columbia / surveyed and drawn by Amos Bowman, mining engineer, assisted by James McEvoy. [Maps]. Geological and Natural History Survey of Canada, https://collections.library.yale.edu/catalog/15536353.