Recorded magnetic tape for information interchange, 6250 cpi (246 cpmm) : group coded recording

Chicago citation style
United States. National Bureau of Standards. Recorded magnetic tape for information interchange, 6250 cpi (246 cpmm) : group coded recording. 1978. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011394541. (Accessed December 17, 2018.)
APA citation style
United States. National Bureau of Standards, (1978) Recorded magnetic tape for information interchange, 6250 cpi (246 cpmm) : group coded recording. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011394541
MLA citation style
United States. National Bureau of Standards. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/011394541>.
Note: These citations are programmatically generated and may be incomplete.