Vavra, H. M., & Querec, L. J. (1973). A study of infant mortality from linked records by age of mother, total-birth order, and other variables: United States, 1960 live-birth cohort. U.S. Department of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics.
Chicago Style (17th ed.) CitationVavra, Helen Mary, and Linda J. Querec. A Study of Infant Mortality from Linked Records by Age of Mother, Total-birth Order, and Other Variables: United States, 1960 Live-birth Cohort. Rockville, Maryland: U.S. Department of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics, 1973.
MLA (9th ed.) CitationVavra, Helen Mary, and Linda J. Querec. A Study of Infant Mortality from Linked Records by Age of Mother, Total-birth Order, and Other Variables: United States, 1960 Live-birth Cohort. U.S. Department of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics, 1973.