Papanastasiou, A., Hübner, M., & Friedli, M. The group portrait: Between individuality, pattern and form / Anna Papanastasiou. Michael Hübner .. Gesicht und Identität=Face and Identity.(2014).
Čikaški stil citiranja (17. izdanje)Papanastasiou, Anna, Michael Hübner, i Magdalena Friedli. "The Group Portrait: Between Individuality, Pattern and Form / Anna Papanastasiou. Michael Hübner .." Gesicht Und Identität=Face and Identity.(2014) .
MLA način citiranja (8. izdanje)Papanastasiou, Anna, et al. "The Group Portrait: Between Individuality, Pattern and Form / Anna Papanastasiou. Michael Hübner .." Gesicht Und Identität=Face and Identity.(2014), .
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