Sign luminance requirements for various background complexities
Title:
Sign luminance requirements for various background complexities
Author:
Mace, Douglas J.
Personal Author:
Publication Information:
Washington, DC : Federal Highway Administration ; Springfield, VA : National Technical Information Service, [1985]
Physical Description:
iv, 38 p. : ill. ; 28 cm.
General Note:
Performing organization: Institute for Research, State College, PA.
"September 1985."
Cover title.