Goodlad, J. I., & Anderson, R. H. (1987). The nongraded elementary school (Rev. edition, Reissued with a new introd.). Teachers College, Columbia University.

Goodlad, John I., and Robert Henry Anderson. The Nongraded Elementary School. Rev. edition, Reissued with a new introd. New York: Teachers College, Columbia University, 1987.

Goodlad, John I., and Robert Henry Anderson. The Nongraded Elementary School. Rev. edition, Reissued with a new introd. Teachers College, Columbia University, 1987.