1. The Child's Conception of Time;Piaget,1969
2. Psychological pre-requisites of forecasting and planning;Böhler;Technological Forecasting and Social Change,1973
3. Copies of these reports are available from National Telecommunications Planning, Telecom Australia, 199 William Street, Melbourne, 3000, Victoria, Au
4. The Australian Post Office was divided into two statutory bodies, Telecom Australia and Australia Post, in July, 1975.