Columbia subject headings:
Materials--Standards--United States.
National Institute of Standards and Technology (U.S.)--Appropriations and expenditures.
National Institute of Standards and Technology (U.S.)--Planning.
Standard Reference Materials Program (National Institute of Standards and Technology (U.S.))
Harvard subject headings:
Materials--Standards--United States.
National Institute of Standards and Technology (U.S.)--Appropriations and expenditures.
National Institute of Standards and Technology (U.S.)--Planning.
Standard Reference Materials Program (National Institute of Standards and Technology (U.S.))
Princeton subject headings: