Tansley, A. E., & Gulliford, R. (1960). The education of slow learning children (2nd ed.). Routledge & Kegan Paul.

Tansley, A. E., and R. Gulliford. The Education of Slow Learning Children. 2nd ed. London: Routledge & Kegan Paul, 1960.

Tansley, A. E., and R. Gulliford. The Education of Slow Learning Children. 2nd ed. Routledge & Kegan Paul, 1960.