APA Style
KREEFT, Peter. (1990).
Summa of the summa .
San Francisco:
Ignatius Press.
Chicago Style
KREEFT, Peter.
Summa of the summa.
San Francisco:
Ignatius Press,
1990.
Text.
MLA Style
KREEFT, Peter.
Summa of the summa.
San Francisco:
Ignatius Press,
1990.
Text.
Turabian Style
KREEFT, Peter.
Summa of the summa.
San Francisco:
Ignatius Press,
1990.
Print.