1. Productivity and Technical Change;Salter,1969
2. Industrial Research and Technological Innovation-An Econometric Analysis;Mansfield,1968
3. Technology, Economic Growth and Public Policy;Nelson,1967
4. Income, Saving and the Theory of Consumer Behavior;Duesenberry,1949
5. Retardation of Industrial Growth;Kuznets;J. Econ. Bus. History,1929