Cita APA

Gamma, E., Helm, R., Johnson, R., & Vlissides, J. (2018). Design patterns: Elements of reusable object-oriented software (Eleventh impression.). Uttar Pradesh, India: Pearson.

Citación estilo Chicago

Gamma, Erich, Richard Helm, Ralph Johnson, y Jhon Vlissides. Design Patterns: Elements of Reusable Object-oriented Software. Eleventh impression. Uttar Pradesh, India: Pearson, 2018.

Cita MLA

Gamma, Erich, Richard Helm, Ralph Johnson, y Jhon Vlissides. Design Patterns: Elements of Reusable Object-oriented Software. Eleventh impression. Uttar Pradesh, India: Pearson, 2018.