Janda, K., Berry, J. M., & Goldman, J. (2000). The challenge of democracy: Government in America : 1999-2000 update (Sixth edition.). Houghton Mifflin.
Citazione stile Chigago Style (17a edizione)Janda, Kenneth, Jeffrey M. Berry, e Jerry Goldman. The Challenge of Democracy: Government in America : 1999-2000 Update. Sixth edition. Boston: Houghton Mifflin, 2000.
Citatione MLA (9a ed.)Janda, Kenneth, et al. The Challenge of Democracy: Government in America : 1999-2000 Update. Sixth edition. Houghton Mifflin, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.