1. Understanding Drug Use: An Adult's Guide to Drugs and the Young;Marin,1971
2. Blum, R.H.: Drugs and personal values. Background Papers, NASPA Drug Education Project, 1966-67.
3. Blum, R.H.: Nature and extent of the problem. Background Papers, NASPA Drug Education Project, 1966–67.
4. Lorenz, K.: An ethologist views the generation gap. University of Colorado Visiting Lecturer, March 1970.
5. Idle hands and giddy minds: Our psychological and emotional unpreparedness for free time;Martin;Amer J Psychoanal,1969