Site 181, section of terrace retaining wall

Chicago citation style
Site 181, section of terrace retaining wall. 1976. Retrieved from the Digital Public Library of America, http://name.umdl.umich.edu/IC-BHL3IC-X-PJU00189%5DPJU00189. (Accessed December 13, 2018.)
APA citation style
(1976) Site 181, section of terrace retaining wall. Retrieved from the Digital Public Library of America, http://name.umdl.umich.edu/IC-BHL3IC-X-PJU00189%5DPJU00189
MLA citation style
Retrieved from the Digital Public Library of America <http://name.umdl.umich.edu/IC-BHL3IC-X-PJU00189%5DPJU00189>.
Note: These citations are programmatically generated and may be incomplete.