Subsets of the standard code for information exchange

Chicago citation style
United States. National Bureau of Standards. Subsets of the standard code for information exchange. 1971. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011394587. (Accessed December 15, 2018.)
APA citation style
United States. National Bureau of Standards, (1971) Subsets of the standard code for information exchange. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011394587
MLA citation style
United States. National Bureau of Standards. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/011394587>.
Note: These citations are programmatically generated and may be incomplete.