The sources listed below provide ratios for industries or groups of
companies. Grouping of companies into industries is done according to
both the Standard Industrial Classification (SIC) system and
the North American Classification System (NAICS). To obtain specific
breakdowns for these classifications, the following sources may be
used:
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Company Information
Standard Industrial Classification Search
http://www.osha.gov/oshstats/sicser.html
This page allows the user to
search the 1987 version SIC manual by keyword, to access
descriptive information for a specified 4-digit SIC, and to
examine the manual structure.
U.S Census, North American Industry Classification System
http://www.census.gov/epcd/www/naics.html
This database offers keyword searching and conversion tables from SIC to NAICS.
Reference Materials
North American Industry Classification System
http://www.consuls.org/search/t?SEARCH=North+Ameri...
A classification system used to group companies into industries for comparison purposes.
(Robert S. Young Library Ref. H5681 .R25 G37 1993)
Standard Industrial Classification Manual
http://www.consuls.org/search/t?SEARCH=Standard+In...
Another industrial classification scheme.
(Robert S. Young Library Ref. HF 1042 .A55)
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