A study of the effect of using colored guide posts on interstate highways to reduce accidental damage /
by J.H. David and Larry Lett.

APA Citation

David, J. H., Lett, L., Alabama. State Highway Dept. Bureau of Research and Development. (1968). A study of the effect of using colored guide posts on interstate highways to reduce accidental damage. Montgomery, Ala.: Alabama Highway Dept., Bureau of Research and Development.

MLA Citation

David, J. H, Larry Lett, and Alabama. State Highway Dept. Bureau of Research and Development. A Study of the Effect of Using Colored Guide Posts On Interstate Highways to Reduce Accidental Damage. Montgomery, Ala.: Alabama Highway Dept., Bureau of Research and Development, 1968.