APA (7th ed.) Citation

Roberts, S., & Heller, P. ;. E. (1999). The complete java 2 certification study guide. Sybex Publishing.

Chicago Style (17th ed.) Citation

Roberts, Simon, and Philip ; Ernest Heller. The Complete Java 2 Certification Study Guide. United States: Sybex Publishing, 1999.

MLA (9th ed.) Citation

Roberts, Simon, and Philip ; Ernest Heller. The Complete Java 2 Certification Study Guide. Sybex Publishing, 1999.