APA (7th ed.) Citation

Sierra, K., & Bates, B. Head first java (2a ed.).

Chicago Style (17th ed.) Citation

Sierra, Kathy, and Bert Bates. Head First Java. 2a ed.

MLA (8th ed.) Citation

Sierra, Kathy, and Bert Bates. Head First Java. 2a ed.

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