Tohutoro APA (7th ed.)

Gamma, E. (2017). Design patterns: elements of reusable object-oriented: Software. Pearson.

Tohutoru Kātū Chicago (17th ed.)

Gamma, Erich. Design Patterns: Elements of Reusable Object-oriented: Software. Noida: Pearson, 2017.

Tohutoro MLA (9th ed.)

Gamma, Erich. Design Patterns: Elements of Reusable Object-oriented: Software. Pearson, 2017.