United States. Public Health Service., & National Center for Health Statistics (U.S.). Vital and health statistics: Vital health stat. Ser. 13, Data natl. health surv. (Online). Washington, D.C.: U.S. Dept. of Health, Education, and Welfare, Public Health Service.
Chicago Style CitationUnited States. Public Health Service., and National Center for Health Statistics (U.S.). Vital and Health Statistics: Vital Health Stat. Ser. 13, Data Natl. Health Surv. (Online). Washington, D.C.: U.S. Dept. of Health, Education, and Welfare, Public Health Service.
MLA CitationUnited States. Public Health Service., and National Center for Health Statistics (U.S.). Vital and Health Statistics: Vital Health Stat. Ser. 13, Data Natl. Health Surv. (Online). Washington, D.C.: U.S. Dept. of Health, Education, and Welfare, Public Health Service.