Gaya APA
SOBELL, M, G. (2006).
A Practical Guide To Linux Commands, Editors, and Shell Programming (1 Cetakan ke-5).
U S A:
Prentice Hall.
Gaya MLA
SOBELL, Mark, G.
"A Practical Guide To Linux Commands, Editors, and Shell Programming".
1 Cetakan ke-5
U S A:
Prentice Hall,
2006.
Printed.