Bonneville Dam, Columbia River between Washington state and Oregon, under construction

Chicago citation style
Curtis, Asahel, 1874-1941. Bonneville Dam, Columbia River between Washington state and Oregon, under construction. ca. 1934. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/curtis/id/1151. (Accessed June 20, 2018.)
APA citation style
Curtis, Asahel, 1874-1941, (ca. 1934) Bonneville Dam, Columbia River between Washington state and Oregon, under construction. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/curtis/id/1151
MLA citation style
Curtis, Asahel, 1874-1941. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/curtis/id/1151>.
Note: These citations are programmatically generated and may be incomplete.