Gamma, E. (1995). Design patterns: Elements of reusable object-oriented software. Addison-Wesley ; Pearson Education.
Chicago-viite (17. p.)Gamma, Erich. Design Patterns: Elements of Reusable Object-oriented Software. Reading, Mass. : New Delhi: Addison-Wesley ; Pearson Education, 1995.
MLA-viite (8. p.)Gamma, Erich. Design Patterns: Elements of Reusable Object-oriented Software. Addison-Wesley ; Pearson Education, 1995.
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