APA (7th ed.) Citation

Harold, E. R. (1999). XML bible. IDG Books Worldwide.

Chicago Style (17th ed.) Citation

Harold, Elliotte Rusty. XML Bible. Foster City, Calif. u.a: IDG Books Worldwide, 1999.

MLA (9th ed.) Citation

Harold, Elliotte Rusty. XML Bible. IDG Books Worldwide, 1999.

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