Trends and variations in fertility in the United States [by] Clyde V. Kiser, Wilson H. Grabill [and] Arthur A. Campbell.
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|---|---|
| Awduron Eraill: | , |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Cambridge, Harvard University Press
1968.
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| Cyfres: | Vital and health statistics monographs
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| Pynciau: |