APA Style
Williams, Paul D.. (2008).
Security Studies : an introduction (Ed. 2nd).
Oxon:
Routledge.
Chicago Style
Williams, Paul D..
Security Studies : an introduction.
Ed. 2nd
Oxon:
Routledge,
2008.
Text.
MLA Style
Williams, Paul D..
Security Studies : an introduction.
Ed. 2nd
Oxon:
Routledge,
2008.
Text.
Turabian Style
Williams, Paul D..
Security Studies : an introduction.
Ed. 2nd
Oxon:
Routledge,
2008.
Print.