Cita APA (7th ed.)
National Bureau of Economic Research, ebrary, Inc, & Griliches, Z. (1984). R & D, patents, and productivity. University of Chicago Press.
Cita Chicago (17th ed.)
National Bureau of Economic Research, Inc ebrary, i Zvi Griliches. R & D, Patents, and Productivity. Chicago: University of Chicago Press, 1984.
Cita MLA (9th ed.)
National Bureau of Economic Research, et al. R & D, Patents, and Productivity. University of Chicago Press, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.