Pethybridge, R. (A) Key to Soviet politics The crisis of the anti-party group. Frederick A. Praeger.
Lua i Stíl Chicago (17ú heag.)Pethybridge, Roger. (A) Key to Soviet Politics The Crisis of the Anti-party Group. Frederick A. Praeger.
Lua MLA (8ú heag.)Pethybridge, Roger. (A) Key to Soviet Politics The Crisis of the Anti-party Group. Frederick A. Praeger.
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