RIGGS, F. W. (1983). Perbandingan Keseluruhan Sistem Politik. Liberty.
Chicago Style (17th ed.) CitationRIGGS, Fred W. Perbandingan Keseluruhan Sistem Politik. Liberty, 1983.
MLA (8th ed.) CitationRIGGS, Fred W. Perbandingan Keseluruhan Sistem Politik. Liberty, 1983.
Warning: These citations may not always be 100% accurate.