Shafritz, J. M., Koeppe, R. P., & Soper, E. W. (1988). The Facts on File dictionary of education. Facts on File.

Shafritz, Jay M., Richard P. Koeppe, and Elizabeth W. Soper. The Facts on File Dictionary of Education. New York: Facts on File, 1988.

Shafritz, Jay M., et al. The Facts on File Dictionary of Education. Facts on File, 1988.