APA (7th ed.) Citation

LePage, Y. (1998). Unix system administrator's bible. IDG Books Worldwide.

Chicago Style (17th ed.) Citation

LePage, Yves. Unix System Administrator's Bible. Foster City, CA: IDG Books Worldwide, 1998.

MLA (9th ed.) Citation

LePage, Yves. Unix System Administrator's Bible. IDG Books Worldwide, 1998.