Campbell Jr. J. and Clanon T.L.: "From the Medical Facility of the California Department of Correction: Questionnaire-study of the Aspects considered Relevant by its Therapists", International Journal of Offender Therapy , 1969, vol. 13 : 3 p. 158.
2.
Clanon T.L.: "Writing Reports for the Parole Board in California" in: The Court and the Expert" Vol. I, APTO Monograph, 3, 1971
