NBS standard reference materials catalog.
National Measurement Laboratory (U.S.).Office of Standard Reference Materials.
United States.National Bureau of Standards.
Washington, D.C. : Office of Standard Reference Materials, National Measurement Laboratory, National Bureau of Standards : For sale by the Supt. of Docs., U.S. G.P.O.,
-1988.
Description based on: 1986-87.
Materials
Issued also to depository libraries in microfiche.
NBS standard reference materials. Supplement

Standard reference materials ... catalog
NIST standard reference materials catalog