Gaya APA

S.Hum, U, S, A. et al (2005). Linux In a Nutshell (Fifth Edition). Sebastopol, CA: .

Gaya MLA

S.Hum, Ummi, Syarifah, Arrodiah. et al. "Linux In a Nutshell". Fifth Edition Sebastopol, CA: , 2005. Text.