Trends in birth rates in the United States since 1870.

Trends in birth rates in the United States since 1870.

書誌詳細
第一著者: Okun, Bernard
フォーマット: 図書
言語:English
出版事項: Baltimore Johns Hopkins Press 1958.
シリーズ:The Johns Hopkins University studies in historical and political science ser. 76, no. 1
主題:
United States > Population.