N.W.M.P. post at Half Way
MLA
Goetzman, M. W. N.W.M.P. Post at Half Way. 1894. https://collections.library.yale.edu/catalog/2011802.
APA, 6th edition
Goetzman, M. W. (1894). N.W.M.P. post at Half Way [Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2011802.