Epstein, L. D., Fainsod, M., Garceau, O., Leiserson, A., Lockard, D., Pennock, J. R., . . . Watkins, F. M. (1968). Political research and political theory. Harvard University Press.
Čikaški stil citiranja (17. izdanje)Epstein, Leon D., et al. Political Research and Political Theory. Cambridge, Mass: Harvard University Press, 1968.
MLA način citiranja (9. izdanje)Epstein, Leon D., et al. Political Research and Political Theory. Harvard University Press, 1968.
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