APA
Hall B. H., Ham Rose Marie & National Bureau Of Economic Research. (1999). The patent paradox revisited: determinants of patenting in the US semiconductor industry, 1980-94. Cambridge, MA: NBER.
Chicago
Hall Bronwyn H, Ham Rose Marie and National Bureau Of Economic Research. 1999. The patent paradox revisited: determinants of patenting in the US semiconductor industry, 1980-94. Cambridge, MA: NBER.
Harvard
Hall B. H., Ham Rose Marie and National Bureau Of Economic Research. (1999). The patent paradox revisited: determinants of patenting in the US semiconductor industry, 1980-94. Cambridge, MA: NBER.
MLA
Hall Bronwyn H, Ham Rose Marie and National Bureau Of Economic Research. The patent paradox revisited: determinants of patenting in the US semiconductor industry, 1980-94. Cambridge, MA: NBER. 1999.