Vidal, R., & Cornils, I. (2015). Alternative worlds: Blue-sky thinking since 1900. Peter Lang.
Čikaški stil citiranja (17. izdanje)Vidal, Ricarda, i Ingo Cornils. Alternative Worlds: Blue-sky Thinking Since 1900. Oxford: Peter Lang, 2015.
MLA način citiranja (9. izdanje)Vidal, Ricarda, i Ingo Cornils. Alternative Worlds: Blue-sky Thinking Since 1900. Peter Lang, 2015.
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