APA Style
Hughes-Wilson, John. (2017).
On Intelligence: The history of espionage and the secret world .
London:
Constable.
Chicago Style
Hughes-Wilson, John.
On Intelligence: The history of espionage and the secret world.
London:
Constable,
2017.
.
MLA Style
Hughes-Wilson, John.
On Intelligence: The history of espionage and the secret world.
London:
Constable,
2017.
.
Turabian Style
Hughes-Wilson, John.
On Intelligence: The history of espionage and the secret world.
London:
Constable,
2017.
.