APA (7th ed.) Citation

Black, C. E. Challenge in Eastern Europe: 12 essays. [publisher not identified].

Chicago Style (17th ed.) Citation

Black, Cyril Edwin. Challenge in Eastern Europe: 12 Essays. New Brunswick, N.J., Rutgers University Press, 1954: [publisher not identified].

MLA (9th ed.) Citation

Black, Cyril Edwin. Challenge in Eastern Europe: 12 Essays. [publisher not identified].