Freeman, E., Freeman, E., Sierra, K., & Bates, B. (2004). Head First design patterns. O'Reilly ; Shroff publishers & distributors.
Čikaški stil citiranja (17. izdanje)Freeman, Eric, Elisabeth Freeman, Kathy Sierra, i Bert Bates. Head First Design Patterns. Sebastopol, CA : New Delhi: O'Reilly ; Shroff publishers & distributors, 2004.
MLA način citiranja (8. izdanje)Freeman, Eric, et al. Head First Design Patterns. O'Reilly ; Shroff publishers & distributors, 2004.
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