Gaya APA
Roberts, R, C. (2007).
Spiritual Emotions : A Psychology of Christian Virtues .
Grand Rapids, Michigan:
William B. Eerdmans Publishing Company.
Gaya MLA
Roberts, Robert, C..
"Spiritual Emotions : A Psychology of Christian Virtues".
Grand Rapids, Michigan:
William B. Eerdmans Publishing Company,
2007.
Academic.