Stepanov, A. S. OGPU organs and Soviet aviation (1928–1934). Omsk State Technical University, Federal State Autonomous Educational Institution of Higher Education.
Chicago Style (17th ed.) CitationStepanov, A. S. OGPU Organs and Soviet Aviation (1928–1934). Omsk State Technical University, Federal State Autonomous Educational Institution of Higher Education.
MLA (9th ed.) CitationStepanov, A. S. OGPU Organs and Soviet Aviation (1928–1934). Omsk State Technical University, Federal State Autonomous Educational Institution of Higher Education.
Warning: These citations may not always be 100% accurate.