Παραπομπή σε μορφή APA (7η εκδ.)

Koenig, H. G. (1994). Aging and God: Spiritual pathways to mental health in midlife and later years. Haworth Pastoral Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Koenig, Harold George. Aging and God: Spiritual Pathways to Mental Health in Midlife and Later Years. New York: Haworth Pastoral Press, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Koenig, Harold George. Aging and God: Spiritual Pathways to Mental Health in Midlife and Later Years. Haworth Pastoral Press, 1994.