Harbaugh, W., Levinson, A., & Wilson, D. (2000). Reexamining the empirical evidence for an environmental Kunets curve. National Bureau of Economic Research.
Čikaški stil citiranja (17. izdanje)Harbaugh, William, Arik Levinson, i David Wilson. Reexamining the Empirical Evidence for an Environmental Kunets Curve. Cambridge: National Bureau of Economic Research, 2000.
MLA način citiranja (9. izdanje)Harbaugh, William, et al. Reexamining the Empirical Evidence for an Environmental Kunets Curve. National Bureau of Economic Research, 2000.
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