Borcherdt, G. (2015). Jon Naar: Catching the Zeitgeist. Blau.
Lua i Stíl Chicago (17ú heag.)Borcherdt, Gesine. "Jon Naar: Catching the Zeitgeist." Blau 2015.
Lua MLA (8ú heag.)Borcherdt, Gesine. "Jon Naar: Catching the Zeitgeist." Blau, 2015.
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