Fortified walls and gate at Verdun

Chicago citation style
Clausen, Meredith L.. Fortified walls and gate at Verdun. 1996. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/buildings/id/1167. (Accessed June 24, 2018.)
APA citation style
Clausen, Meredith L., (1996) Fortified walls and gate at Verdun. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/buildings/id/1167
MLA citation style
Clausen, Meredith L.. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/buildings/id/1167>.
Note: These citations are programmatically generated and may be incomplete.