Columbia subject headings:
Harvard subject headings:
Pollution prevention--United States--Handbooks, manuals, etc.
Polyurethanes--Environmental aspects--United States--Handbooks, manuals, etc.
Urethane foam--Environmental aspects--United States--Handbooks, manuals, etc.
Princeton subject headings:
Pollution prevention--United States--Handbooks, manuals, etc.
Polyurethanes--Environmental aspects--United States--Handbooks, manuals, etc.
Urethane foam--Environmental aspects--United States--Handbooks, manuals, etc.