Müller, N., & Davatz, B. (1999). As time goes by: Portraits 1982,1988,1997 / Barbara Davatz. [Autorinnen: Nicole Müller ; ] (1. ed.). Ed. Frey.
Čikaški stil citiranja (17. izdanje)Müller, Nicole, i Barbara Davatz. As Time Goes by: Portraits 1982,1988,1997 / Barbara Davatz. [Autorinnen: Nicole Müller ; ]. 1. ed. Zurich: Ed. Frey, 1999.
MLA način citiranja (8. izdanje)Müller, Nicole, i Barbara Davatz. As Time Goes by: Portraits 1982,1988,1997 / Barbara Davatz. [Autorinnen: Nicole Müller ; ]. 1. ed. Ed. Frey, 1999.
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