National Center for Health Statistics (U.S.). Vital and health statistics. Series 23, Data from the National Survey of Family Growth. [Hyattsville, Md.]: U.S. Dept. of Health, Education, and Welfare, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics ; Washington, D.C. : For sale by the Supt. of Docs., U.S. G.P.O.
Citación estilo ChicagoNational Center for Health Statistics (U.S.). Vital and Health Statistics. Series 23, Data From the National Survey of Family Growth. [Hyattsville, Md.]: U.S. Dept. of Health, Education, and Welfare, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics ; Washington, D.C. : For sale by the Supt. of Docs., U.S. G.P.O.
Cita MLANational Center for Health Statistics (U.S.). Vital and Health Statistics. Series 23, Data From the National Survey of Family Growth. [Hyattsville, Md.]: U.S. Dept. of Health, Education, and Welfare, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics ; Washington, D.C. : For sale by the Supt. of Docs., U.S. G.P.O.