APA (7th ed.) Citation

Horstmann, C. S., & Cornell, G. (1999). Core Java 1.2. Sun Microsystems.

Chicago Style (17th ed.) Citation

Horstmann, Cay S., and Gary Cornell. Core Java 1.2. Palo Alto, California: Sun Microsystems, 1999.

MLA (9th ed.) Citation

Horstmann, Cay S., and Gary Cornell. Core Java 1.2. Sun Microsystems, 1999.

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