APA Style
Ker, W.P.. (1958).
The Dark Ages .
New York:
A Mentor Book.
Chicago Style
Ker, W.P..
The Dark Ages.
New York:
A Mentor Book,
1958.
Text.
MLA Style
Ker, W.P..
The Dark Ages.
New York:
A Mentor Book,
1958.
Text.
Turabian Style
Ker, W.P..
The Dark Ages.
New York:
A Mentor Book,
1958.
Print.