Aids for COBOL program conversion : FIPS PUB 21 to FIPS PUB 21-1 /

Chicago citation style
United States. National Bureau of Standards. Aids for COBOL program conversion : FIPS PUB 21 to FIPS PUB 21-1 /. 1975. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011394577. (Accessed December 14, 2018.)
APA citation style
United States. National Bureau of Standards, (1975) Aids for COBOL program conversion : FIPS PUB 21 to FIPS PUB 21-1 /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011394577
MLA citation style
United States. National Bureau of Standards. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/011394577>.
Note: These citations are programmatically generated and may be incomplete.