APA-Zitierstil (7. Ausg.)

Keppe, N. R. (2002). The origin of illness: Psychological, physical and social (1st American ed.). Campbell Hall Press.

Chicago-Zitierstil (17. Ausg.)

Keppe, Norberto R. The Origin of Illness: Psychological, Physical and Social. 1st American ed. Englewood Cliffs, N.J: Campbell Hall Press, 2002.

MLA-Zitierstil (9. Ausg.)

Keppe, Norberto R. The Origin of Illness: Psychological, Physical and Social. 1st American ed. Campbell Hall Press, 2002.