List of Specific Industries
To the right, click on the [+] or [-] graphics beside an industry category to expand or collapse that list.
North American Industry Classification System (NAICS) codes for this industry
[ 519120 ] = Libraries and archives — Reference libraries
This library resource may be part of a larger library or technical center. Here will be science journals to explain the technology behind every system for analyzing which air and water pathogens are present in the home. Also present will be technical works that describe systems for removing contaminants from the home.