Trends in birth rates in the United States since 1870.

Trends in birth rates in the United States since 1870.

Dettagli Bibliografici
Autore principale: Okun, Bernard
Natura: Libro
Lingua:English
Pubblicazione: Baltimore Johns Hopkins Press 1958.
Serie:The Johns Hopkins University studies in historical and political science ser. 76, no. 1
Soggetti:
United States > Population.