Growth in intellectual ability as measured by repeated tests,
by Frank N. Freeman and Charles D. Flory.
- Washington, D. C. ; New York : Society for research in child development, National research council ; Kraus, 1966.
- xi, 116 p. tables, diagrs. 23 cm.
- Monographs of the Society for research in child development. vol. II, no. 2 (serial no. 9) .