1. Anderson C. Patient teaching and communicating in an information age. Albany NY: Delmar 1990.
2. Arenberg D. The effects of auditory augmentation on visual retention for you and old adults. J Gerontol 1977; 32:192195.
3. Birren J. My perspective on research and aging. In V. Bengston K.W. Schaie (Eds.) The course of later life: Research and reflections. New York: Springer 1989.
4. Botwinicki J. Aging and behavior (3rd ed.). New York: Springer 1984.
5. Merriam S. Caffarella R. Learning in adulthood. San Francisco: Jossey-Bass 1991.