Cita APA (7th ed.)

(2004). Head First design patterns / Eric Freeman, Elisabeth Freeman, with Kathy Sierra and Bert Bates.

Cita Chicago (17th ed.)

Head First Design Patterns / Eric Freeman, Elisabeth Freeman, with Kathy Sierra and Bert Bates. 2004.

Cita MLA (9th ed.)

Head First Design Patterns / Eric Freeman, Elisabeth Freeman, with Kathy Sierra and Bert Bates. 2004.