APA Style
Duignan, Brian. (2011).
Medieval Philosophy .
New York:
Britannica.
Chicago Style
Duignan, Brian.
Medieval Philosophy.
New York:
Britannica,
2011.
.
MLA Style
Duignan, Brian.
Medieval Philosophy.
New York:
Britannica,
2011.
.
Turabian Style
Duignan, Brian.
Medieval Philosophy.
New York:
Britannica,
2011.
.