Birth expectations data : June 1971 (advance data from the June 1971 Current population survey)
United States.Bureau of the Census.
Washington, D.C. : U.S. Dept. of Commerce, Bureau of the Census : For sale by the Supt. of Docs., U.S. G.P.O.,
1972.
Title from cover.
"February 1972."
Includes bibliographical references.
Fertility, Human
Childbirth
Family size
Birth intervals
Mothers