Intellectual maturity of children : demographic and socioeconomic factors, United States / [by Dale B. Harris and Jean Roberts].
Adresse Bibliographique
Rockville, Md. : U.S. Dept. of Health, Education, and Welfare, Public Health Service, Health Services and Mental Health Administration, National Center for Health Statistics, 1972.
Exemplaires
Description
iv, 74 p. : ill. ; 26 cm.
Collection
Vital and health statistics ; series 11. Data from the National Health Survey ; no. 116
