1. Cline, M. J. 1975. The white cell. Harvard University Press, Cambridge, Mass.
2. Kohn, R. R. 1971. Principles of mammalian aging. Prentice-Hall, Inc., Englewood Cliffs. N.J.
3. Makinodan, T., and W. H. Adler. 1975. Effects of aging on the differentiation and proliferation potentials of cells of the immune system. Federation Proceedings 34: 153–158.
4. Makinodan, T., E. H. Perkins, and M. G. Chen. 1971. Immunologic activity of the aged. Pages 171–198 in B. L. Strehler, ed. Advances in gerontological research. Academic Press, Inc., New York.
5. Nordin, A. A., and T. Makinodan. 1974. Humoral immunity in aging. Federation Proceedings 33: 2033–2035.