Norman OK: University of Oklahoma Press, 1977. Hardcover. vii, 327p., illustrated with b&w line maps and charts, hardbound first edition cloth boards in dust jacket. Slightest edgewear, entirely clean and sound, a near-fine copy. Frederick Jackson Turner's famous thesis applied to ancient Rome, North Africa, Latin America and the Philippines, and to migration and ethnic studies. "Today Turner would scarcely recognize his frontier concept.."