TY  - BOOK
AU  - Yasuba,Yasukichi
TI  - Birth rates of the white population in the United States, 1800-1860: an economic study 
T2  - The Johns Hopkins University studies in historical and political science, ser. 79,
U1  - 312.173 
PY  - 1962///
CY  - Baltimore
PB  - Johns Hopkins Press
KW  - United States
KW  - Statistics, Vital
N1  - Revision of a dissertation at the Johns Hopkins University; Includes index and Bibliographical footnotes
ER  -