1
Main Authors:
Corporate Authors: ; ;
Group Author:
Published:
Call Number: U463.65/R896
Corporate Authors: ; ;
Group Author:
Published:
Call Number: U463.65/R896
2
Size of letters required for visibility as a function of viewing distance and observer visual acuity
Main Authors:
Corporate Authors: ;
Published: U.S. Dept. of Commerce, National Bureau of Standards For sale by the Supt. of Docs., U.S. G.P.O.,
Publication Dates: 1983.
Call Number: TS88/H859
Corporate Authors: ;
Published: U.S. Dept. of Commerce, National Bureau of Standards For sale by the Supt. of Docs., U.S. G.P.O.,
Publication Dates: 1983.
Call Number: TS88/H859