East Portal of the CascadeTunnel, Great Northern Railroad, Berne, n.d

Chicago citation style
East Portal of the CascadeTunnel, Great Northern Railroad, Berne, n.d. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/transportation/id/261. (Accessed June 19, 2018.)
APA citation style
East Portal of the CascadeTunnel, Great Northern Railroad, Berne, n.d. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/transportation/id/261
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/transportation/id/261>.
Note: These citations are programmatically generated and may be incomplete.