NCR Class 18-22 Electronic Calculator

Chicago citation style
Nippon Electric Co. NCR Class 18-22 Electronic Calculator. ca 1972. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1396777&repo=DPLA. (Accessed November 13, 2018.)
APA citation style
Nippon Electric Co, (ca 1972) NCR Class 18-22 Electronic Calculator. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1396777&repo=DPLA
MLA citation style
Nippon Electric Co. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1396777&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.