Gaya APA
Heinrich, H, G., Wiarr, S. (1991).
Political Culture In Vienna & Warsaw (1).
Florida Atlantic:
Westview Press.
Gaya MLA
Heinrich, Hans, Georg., Wiarr, Slawomir.
"Political Culture In Vienna & Warsaw".
1
Florida Atlantic:
Westview Press,
1991.
Buku Teks.