Cita APA (7th ed.)

(2002). Object design: Roles, responsibilities, and collaborations / Rebecca Wirfs-Brock, Alan McKean.

Cita Chicago (17th ed.)

Object Design: Roles, Responsibilities, and Collaborations / Rebecca Wirfs-Brock, Alan McKean. 2002.

Cita MLA (9th ed.)

Object Design: Roles, Responsibilities, and Collaborations / Rebecca Wirfs-Brock, Alan McKean. 2002.