Standard industrial classification manual :
1977 supplement / U.S. Department of Commerce, Office of Federal Statistical Policy and Standards.
|Corporate Author:||United States.|
Washington : The Office : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1978.
Commercial products /
Commercial products / United States /
"Both the Standard Industrial Classification Manual 1972 and the Enterprise Standard Industrial Classification Manual 1974 are updated by this supplement."
15 p. ;
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