APA
Galasso A., National Bureau of Economic Research & Schankerman M. (2014). Patents and cumulative innovation. Cambridge: NBER.
Chicago
Galasso Alberto, National Bureau of Economic Research and Schankerman Mark. 2014. Patents and cumulative innovation. Cambridge: NBER.
Harvard
Galasso A., National Bureau of Economic Research and Schankerman M. (2014). Patents and cumulative innovation. Cambridge: NBER.
MLA
Galasso Alberto, National Bureau of Economic Research and Schankerman Mark. Patents and cumulative innovation. Cambridge: NBER. 2014.