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Literacy among youths 12-17 years, United States
Dorothee K. Vogt · National Center for Health Statistics; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington]
28 sayfa · 1973
Ability testing / Reading / Social conditions / Students / Educational Status
Health attitudes and behavior of youths 12-17 years
Dorothee K. Vogt · U.S. Dept. of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics
67 sayfa · 1975
Health and hygiene / Socioeconomic Factors / Health attitudes / Youth / Statistics