Citazione Stile APA (7a Edizione)

Zimmermann, R. (2005). Small ideas that work. Bernard van Leer Foundation.

Citazione stile Chigago Style (17a edizione)

Zimmermann, Robert. Small Ideas That Work. La Haya: Bernard van Leer Foundation, 2005.

Citatione MLA (9a ed.)

Zimmermann, Robert. Small Ideas That Work. Bernard van Leer Foundation, 2005.