APA (7th ed.) Citation

Roberts, S., & Heller, P. (1997). Java 1.1 certification study guide. Sybex.

Chicago Style (17th ed.) Citation

Roberts, Simon, and Philip Heller. Java 1.1 Certification Study Guide. San Francisco [etc.]: Sybex, 1997.

MLA (9th ed.) Citation

Roberts, Simon, and Philip Heller. Java 1.1 Certification Study Guide. Sybex, 1997.

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