British Psychological Society. Developmental Section & Butterworth, G. (1977). The Child's representation of the world: [proceedings of the annual conference of the Developmental Section of the British Psychological Society held at the University of Surrey, England, September 14-16, 1976]. Plenum Press.
Cytowanie według stylu Chicago (wyd. 17)British Psychological Society. Developmental Section i George Butterworth. The Child's Representation of the World: [proceedings of the Annual Conference of the Developmental Section of the British Psychological Society Held at the University of Surrey, England, September 14-16, 1976]. New York: Plenum Press, 1977.
Cytowanie według stylu MLA (wyd. 9)British Psychological Society. Developmental Section i George Butterworth. The Child's Representation of the World: [proceedings of the Annual Conference of the Developmental Section of the British Psychological Society Held at the University of Surrey, England, September 14-16, 1976]. Plenum Press, 1977.