APA Style
Johnson, C., VARMA, J. (2015).
Pro Bash Programming; Scripting the GNU/ Linux Shel (2).
Berkeley, USA:
Apress.
MLA Style
Johnson, Chris., VARMA, Jayant.
"Pro Bash Programming; Scripting the GNU/ Linux Shel".
2
Berkeley, USA:
Apress,
2015.
Text.