Commonwealth 581 Admiration Professional Simplex Slide Rule

Chicago citation style
Commonwealth Plastics Corporation. Commonwealth 581 Admiration Professional Simplex Slide Rule. 1950s. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1215010&repo=DPLA. (Accessed November 15, 2018.)
APA citation style
Commonwealth Plastics Corporation, (1950s) Commonwealth 581 Admiration Professional Simplex Slide Rule. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1215010&repo=DPLA
MLA citation style
Commonwealth Plastics Corporation. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1215010&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.