APA-čujuhus (7. p.)
Andrew, D. (1967). Around the World Program: Bulgaria and Romania. Doubleday.
Chicago-čujuhus (17. p.)
Andrew, D.D. Around the World Program: Bulgaria and Romania. Nueva York, EUA: Doubleday, 1967.
MLA-čujuhus (9. p.)
Andrew, D.D. Around the World Program: Bulgaria and Romania. Doubleday, 1967.
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