Schettkat, R., & Wagner, M. (1990). Technological change and employment: Innovation in the German economy. Walter de Gruyter.
Cita Chicago Style (17a ed.)Schettkat, Ronald, y Michael Wagner. Technological Change and Employment: Innovation in the German Economy. Berlin [etc.]: Walter de Gruyter, 1990.
Cita MLA (9a ed.)Schettkat, Ronald, y Michael Wagner. Technological Change and Employment: Innovation in the German Economy. Walter de Gruyter, 1990.
Precaución: Estas citas no son 100% exactas.