Troughton and Simms Reflecting Circle

Chicago citation style
Troughton and Simms. Troughton and Simms Reflecting Circle. late 1830s. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1197876&repo=DPLA. (Accessed November 12, 2018.)
APA citation style
Troughton and Simms, (late 1830s) Troughton and Simms Reflecting Circle. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1197876&repo=DPLA
MLA citation style
Troughton and Simms. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1197876&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.