References
- Tough , J. 1976 . Listening to Children Talking , London : Schools Council, Ward Lock .
- Chukovsky , K. 1963 . From Two to Five , Los Angeles : University of California Press .
- Britton , J. 1970 . Language and Learning , London : Pelican .
- Donaldson , M. 1978 . Children's Minds , Glasgow : Fontana .
- Tough , J. 1977 . Talking and Learning , London : Schools Council, Ward Lock .