Vucinich, Wayne S. (1969), "Interwar Yugoslavia", Contemporary Yugoslavia: Twenty Years of Socialist Experiment, University of California Press, p. 7
Vucinich, Wayne S. (1969), "Interwar Yugoslavia", Contemporary Yugoslavia: Twenty Years of Socialist Experiment, University of California Press, p. 8
Vucinich, Wayne S. (1969), "Interwar Yugoslavia", Contemporary Yugoslavia: Twenty Years of Socialist Experiment, University of California Press, p. 14
Vucinich, Wayne S. (1969), "Interwar Yugoslavia", Contemporary Yugoslavia: Twenty Years of Socialist Experiment, University of California Press, p. 355
Vucinich, Wayne S. (1969), "Interwar Yugoslavia", Contemporary Yugoslavia: Twenty Years of Socialist Experiment, University of California Press, p. 15