Cita APA (7a ed.)

IDEO (Firma). (2003). IDEO method cards. IDEO.

Cita Chicago Style (17a ed.)

IDEO (Firma). IDEO Method Cards. [Palo Alto, CA]: IDEO, 2003.

Cita MLA (9a ed.)

IDEO (Firma). IDEO Method Cards. IDEO, 2003.