Toward a leading travel indicator /
David T. Hartgen and K.-W. Peter Koeppl ; Planning Research Unit, New York State Department of Transportation.
APA Citation
Hartgen, D. T., New York (State). Dept. of Transportation. Planning Research Unit. (1979). Toward a leading travel indicator. Albany: New York State Department of Transportation Planning Division.
MLA Citation
Hartgen, David T, and New York (State). Dept. of Transportation. Planning Research Unit. Toward a Leading Travel Indicator. Albany: New York State Department of Transportation Planning Division, 1979.
Warning: These citations may not always be complete (especially for serials).