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Abstract
∗ Based on a talk presented at The Symposium on the Young Child, Honolulu, Hawaii, May 1972. This paper was produced pursuant to a contract with the Office of Education, U. S. Department of Health, Education and Welfare and a grant from the Office of Child Development. Contractors undertaking such projects under Government sponsorship are encouraged to express freely their professional judgment. Points of view or opinions stated do not, therefore, represent official Government position or policy. Contract OCD-05-70-166.
Notes
∗ Based on a talk presented at The Symposium on the Young Child, Honolulu, Hawaii, May 1972. This paper was produced pursuant to a contract with the Office of Education, U. S. Department of Health, Education and Welfare and a grant from the Office of Child Development. Contractors undertaking such projects under Government sponsorship are encouraged to express freely their professional judgment. Points of view or opinions stated do not, therefore, represent official Government position or policy. Contract OCD-05-70-166.