APA Style
Gilbert, Adrian. (2008).
Spy Files : Codes and Ciphers .
London:
QED Publishing.
Chicago Style
Gilbert, Adrian.
Spy Files : Codes and Ciphers.
London:
QED Publishing,
2008.
Text.
MLA Style
Gilbert, Adrian.
Spy Files : Codes and Ciphers.
London:
QED Publishing,
2008.
Text.
Turabian Style
Gilbert, Adrian.
Spy Files : Codes and Ciphers.
London:
QED Publishing,
2008.
Print.