Citace podle APA (7th ed.)

EASTON, D. (1969). A Systems analysis of political life. University of Chicago Pr..

Citace podle Chicago (17th ed.)

EASTON, David. A Systems Analysis of Political Life. Chicago: University of Chicago Pr., 1969.

Citace podle MLA (9th ed.)

EASTON, David. A Systems Analysis of Political Life. University of Chicago Pr., 1969.

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