TY  - BOOK
ED  - United States. Department of Health, Education, and Welfare. Public Health Service
TI  - Behavior Patterns in School of Youths,12-17 Years, United States
T2  - Vital and Health Statistics.Series 11: Data from the National Health Survey, no. 139
PY  - 1974///
CY  - Rockville, Md.
PB  - National Center for Health Statistics
N1  - Includes bibliographic references
ER  -