Opfer-Klinger, B. Bulgaria's collaboration with the Axis Powers in World War II. Complicated complicity : european collaboration with Nazi Germany during World War II.
Chicago-viite (17. p.)Opfer-Klinger, Björn. "Bulgaria's Collaboration with the Axis Powers in World War II." Complicated Complicity : European Collaboration with Nazi Germany During World War II .
MLA-viite (8. p.)Opfer-Klinger, Björn. "Bulgaria's Collaboration with the Axis Powers in World War II." Complicated Complicity : European Collaboration with Nazi Germany During World War II, .
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