1. “Learning by Teaching,” in Work in Progress, Educational Services. Inc., 1966.
2. Measuring Educational Achievement, Prentice-Hall, Englewood Cliffs, N. J., 1965, p. 318.
3. Boulder Elementary Science Project, final report of PACE Project 1312, Boulder Valley School District Re 2, Boulder, Colorado, 1969.
4. (Ed.), BMD Biomedical Computer Programs, University of California Press, Berkeley, 1968.