Crew working on wooden trestle bridge connecting Tunnel Mountain with the south portal of the tunnel during the construction of the White Pass & Yukon Railroad, Alaska, ca. 1899

Chicago citation style
Hegg, Eric A., 1867-1948. Crew working on wooden trestle bridge connecting Tunnel Mountain with the south portal of the tunnel during the construction of the White Pass & Yukon Railroad, Alaska, ca. 1899. ca. 1899. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hegg/id/700. (Accessed October 16, 2018.)
APA citation style
Hegg, Eric A., 1867-1948, (ca. 1899) Crew working on wooden trestle bridge connecting Tunnel Mountain with the south portal of the tunnel during the construction of the White Pass & Yukon Railroad, Alaska, ca. 1899. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hegg/id/700
MLA citation style
Hegg, Eric A., 1867-1948. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/hegg/id/700>.
Note: These citations are programmatically generated and may be incomplete.