Walton, N. E. (1966). An investigation of the effects of luminaire mounting height on roadside sign placement and visibility. [publisher not identified].
Chicago Style (17th ed.) CitationWalton, Ned Ephram. An Investigation of the Effects of Luminaire Mounting Height on Roadside Sign Placement and Visibility. [College Station, Tex.]: [publisher not identified], 1966.
MLA (9th ed.) CitationWalton, Ned Ephram. An Investigation of the Effects of Luminaire Mounting Height on Roadside Sign Placement and Visibility. [publisher not identified], 1966.
Warning: These citations may not always be 100% accurate.