APA Style
Gilbert, Martin. (2002).
A history of the twentieth century .
:
Perennial.
Chicago Style
Gilbert, Martin.
A history of the twentieth century.
:
Perennial,
2002.
Text.
MLA Style
Gilbert, Martin.
A history of the twentieth century.
:
Perennial,
2002.
Text.
Turabian Style
Gilbert, Martin.
A history of the twentieth century.
:
Perennial,
2002.
Print.