Surveying slope beneath caves

Chicago citation style
Surveying slope beneath caves. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/tahirler/id/25. (Accessed October 19, 2018.)
APA citation style
Surveying slope beneath caves. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/tahirler/id/25
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/tahirler/id/25>.
Note: These citations are programmatically generated and may be incomplete.