What has the author Rendigs Fels written?

Rendigs Fels has written:

'Casebook of economic problems and policies: practice in thinking' -- subject(s): Case studies, Economic policy, Economics, Problems, exercises

'Wages, earnings, and employment, Nashville, Chattanooga & St. Louis Railway, 1866-1896' -- subject(s): Nashville, Chattanooga, and St. Louis Railway, Railroads, Wages