Tchoty, or Russian Abacus

Chicago citation style
Tchoty, or Russian Abacus. 1965. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_690536&repo=DPLA. (Accessed November 15, 2018.)
APA citation style
(1965) Tchoty, or Russian Abacus. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_690536&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_690536&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.