United States. Technical Committee on Industrial Classification & United States. Bureau of the Budget. Office of Statistical Standards. (1957). Standard industrial classification manual. Executive Office of the President, Bureau of the Budget.
Chicago-viite (17. p.)United States. Technical Committee on Industrial Classification ja United States. Bureau of the Budget. Office of Statistical Standards. Standard Industrial Classification Manual. Washington, D.C.: Executive Office of the President, Bureau of the Budget, 1957.
MLA-viite (9. p.)United States. Technical Committee on Industrial Classification ja United States. Bureau of the Budget. Office of Statistical Standards. Standard Industrial Classification Manual. Executive Office of the President, Bureau of the Budget, 1957.