American Psychological Association
Pieper, Josef ( 1965 ). Four Cardinal Virtues Prudence Justice Fortitude Temperance ( 00 ed. ). Helen & Kurt Wolff Book.
Modern Language Association
Pieper, Josef. Four Cardinal Virtues Prudence Justice Fortitude Temperance . Helen & Kurt Wolff Book. 1965
Chicago Citation
Pieper, Josef. Four Cardinal Virtues Prudence Justice Fortitude Temperance . 00 .New York
: Helen & Kurt Wolff Book, 1965.
American Medical Association
Pieper, Josef. Four Cardinal Virtues Prudence Justice Fortitude Temperance . Helen & Kurt Wolff Book; 1965.