Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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