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Tax-exempt Securities and the surtax : by Charles O. Hardy
Hardy, Charles O., (1926)
National taxation of state instrumentalities
Powell, Alden L., (1936)
Federal aid and the tax problem
Heer, Clarence$, (1939)
Materials from Charles O. Hardy's course on money and banking, economics 330, University of Chicago, 1933 - 1934
Samuels, Warren J., (2005)
Government and economic life
Lyon, Leverett Samuel, (1941)
Forecasting business conditions
Hardy, Charles O., (1927)