Arnheim, R. A Note on Contemplation and Creativity (with 2 pictures). Festschrift Kurt Badt zum siebzigsten Geburtstage.
Čikaški stil citiranja (17. izdanje)Arnheim, Rudolf. "A Note on Contemplation and Creativity (with 2 Pictures)." Festschrift Kurt Badt Zum Siebzigsten Geburtstage .
MLA način citiranja (8. izdanje)Arnheim, Rudolf. "A Note on Contemplation and Creativity (with 2 Pictures)." Festschrift Kurt Badt Zum Siebzigsten Geburtstage, .
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