Alston, L. J., Þráinn Eggertsson, & North, D. C. (1996). Empirical studies in institutional change. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Alston, Lee J., Þráinn Eggertsson, agus Douglass C. North. Empirical Studies in Institutional Change. Cambridge ; New York: Cambridge University Press, 1996.
Lua MLA (8ú heag.)Alston, Lee J., et al. Empirical Studies in Institutional Change. Cambridge University Press, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.