APA-čujuhus (7. p.)
Kegley, C. W., & Wittkopf, E. R. (1989). World politics: Trend and transformation (3rd ed.). St. Martin's.
Chicago-čujuhus (17. p.)
Kegley, Charles W., juo Eugene R. Wittkopf. World Politics: Trend and Transformation. 3rd ed. New York: St. Martin's, 1989.
MLA-čujuhus (9. p.)
Kegley, Charles W., juo Eugene R. Wittkopf. World Politics: Trend and Transformation. 3rd ed. St. Martin's, 1989.
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