11,000 seven-year-olds : first report of the National Child Development Study (1958 Cohort) submitted to the Central Advisory Council for Education (England) April 1966 [by M. L. Kellmer Pringle, et al / [M.L. Kellmer Pringle].
Pringle, M. L. Kellmer (Mia Lilly Kellmer), 1920- | Date: [1966]