Cita APA (7a ed.)

Arnheim, R. A Note on Contemplation and Creativity (with 2 pictures). Festschrift Kurt Badt zum siebzigsten Geburtstage.

Cita Chicago Style (17a ed.)

Arnheim, Rudolf. "A Note on Contemplation and Creativity (with 2 Pictures)." Festschrift Kurt Badt Zum Siebzigsten Geburtstage .

Cita MLA (8a ed.)

Arnheim, Rudolf. "A Note on Contemplation and Creativity (with 2 Pictures)." Festschrift Kurt Badt Zum Siebzigsten Geburtstage, .