Improving Education for Disadvantaged Children - P Osterrieth; W de Coster G de Londsheere J Burion (New York Bernard Van Leer Foundation the Hague and Pergamon Press, 1977)
P Osterrieth; W de Coster; G de Londsheere & J Burion: Improving Education for Disadvantaged Children. New York. Bernard Van Leer Foundation the Hague and Pergamon Press, 1977. 0-08-024265-0--(371.967OST)
ENGLISH