Johnson, E. A. J. 1900-1972. The origins and development of the American economy : an introduction to economics / by E.A.J. Johnson and Herman E. Krooss. - New York : Prentice-Hall, c1953. - xii, 420 ; 22 cm. Later ed. published as the author's The American economy. Includes index. Subjects--Geographic Terms: United States--Economic conditions. Dewey Class. No.: 330.973 / JOO 1953