Crepon, B., Duguet, E., & Mairesse, J. (1998). Research, innovation, and productivity: An econometric analysis at the firm level. National Bureau of Economic Research.
Chicago-referens (17:e uppl.)Crepon, Bruno, Emmnauel Duguet, och Jacques Mairesse. Research, Innovation, and Productivity: An Econometric Analysis at the Firm Level. Cambridge: National Bureau of Economic Research, 1998.
MLA-referens (9:e uppl.)Crepon, Bruno, et al. Research, Innovation, and Productivity: An Econometric Analysis at the Firm Level. National Bureau of Economic Research, 1998.
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