Campbell, J. L., & Pederson, O. K. (2014). The national origins of policy ideas: Knowledge regimes in the United States, France, Germany, and Denmark. Princeton University Press.
Dyfyniad Arddull ChicagoCampbell, John L., and Ove K. Pederson. The National Origins of Policy Ideas: Knowledge Regimes in the United States, France, Germany, and Denmark. Princeton, New Jersey: Princeton University Press, 2014.
Dyfyniad MLACampbell, John L., and Ove K. Pederson. The National Origins of Policy Ideas: Knowledge Regimes in the United States, France, Germany, and Denmark. Princeton University Press, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.