Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Bernard van Leer Foundation y Robert Zimmermann. Small Ideas That Work. The Netherlands: Bernard van Leer Foundation, 2005.

Cita MLA (9a ed.)

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