Easton, D. (1953). The political system: An inquiry into the state of political science. Alfred A. Knopf.
Citazione stile Chigago Style (17a edizione)Easton, David. The Political System: An Inquiry into the State of Political Science. Nueva York: Alfred A. Knopf, 1953.
Citatione MLA (9a ed.)Easton, David. The Political System: An Inquiry into the State of Political Science. Alfred A. Knopf, 1953.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.