Rowntree, D. (1994). Preparing materials for open, distance and flexible learning: An action guide for teachers and trainers. Kogan Page, published in association with the Institute of Education Technology, Open University.

Rowntree, Derek. Preparing Materials for Open, Distance and Flexible Learning: An Action Guide for Teachers and Trainers. London: Kogan Page, published in association with the Institute of Education Technology, Open University, 1994.

Rowntree, Derek. Preparing Materials for Open, Distance and Flexible Learning: An Action Guide for Teachers and Trainers. Kogan Page, published in association with the Institute of Education Technology, Open University, 1994.