Columbia subject headings:
United States Highway 40.
United States--Description and travel.
Vale, Geraldine R.
Vale, Thomas R., 1943-
Harvard subject headings:
United States Highway 40.
United States--Description and travel.
Vale, Geraldine R.
Vale, Thomas R., 1943-
Princeton subject headings:
United States Highway 40.
United States--Description and travel.
Vale, Geraldine R.
Vale, Thomas R., 1943-