APA
Adams J. D., Marcu Mircea & National Bureau Of Economic Research. (2004). R & D sourcing, joint ventures and innovation: A multiple indicators approach. Cambridge, MA: NBER.
Chicago
Adams James D, Marcu Mircea and National Bureau Of Economic Research. 2004. R & D sourcing, joint ventures and innovation: A multiple indicators approach. Cambridge, MA: NBER.
Harvard
Adams J. D., Marcu Mircea and National Bureau Of Economic Research. (2004). R & D sourcing, joint ventures and innovation: A multiple indicators approach. Cambridge, MA: NBER.
MLA
Adams James D, Marcu Mircea and National Bureau Of Economic Research. R & D sourcing, joint ventures and innovation: A multiple indicators approach. Cambridge, MA: NBER. 2004.