Cover image for NBS metric kit : official metric information
Title:
NBS metric kit : official metric information
Author:
United States. National Bureau of Standards.
Publication Information:
[Place of publication not identified] : U.S. National Bureau of Standards : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1976.
Physical Description:
4 pamphlets, 1 conversion card, 1 ruler (15 cm.) in envelope (23 x 30 cm.).
Language:
English