APA Citation

Gamma, E., Helm, R., Johnson, R., & Vlissides, J. (1995). Design patterns: Elements of Reusable Object-Oriented Software. Estados Unidos de América: Addison-Wesley.

Chicago Style Citation

Gamma, Erich,, Richard Helm, Ralph Johnson, and John Vlissides. Design Patterns: Elements of Reusable Object-Oriented Software. Estados Unidos de América: Addison-Wesley, 1995.

MLA Citation

Gamma, Erich,, Richard Helm, Ralph Johnson, and John Vlissides. Design Patterns: Elements of Reusable Object-Oriented Software. Estados Unidos de América: Addison-Wesley, 1995.

Warning: These citations may not always be 100% accurate.