Employment during pregnancy legitimate live births, United States - 1963 /
|Main Author:||Kovar, Mary Grace,|
|Other Authors:||United States. Public Health Service,, National Center for Health Statistics (U.S.),|
Washington, D.C. :
U.S. Department of Health, Education, and Welfare, Public Health Service,
1 online resource (iv, 30 pages).
Public Health Service publication ;
Vital and health statistics. Data from the national vital statistics system ; no. 7.