Cita APA

Freeman, E., & Robson, E. (2004). Head first design patterns (First edition.). OReilly.

Citación estilo Chicago

Freeman, Eric, and Elisabeth Robson. Head First Design Patterns. First edition. Sebastopol, CA: OReilly, 2004.

Cita MLA

Freeman, Eric, and Elisabeth Robson. Head First Design Patterns. First edition. OReilly, 2004.

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