TY  - BOOK
AU  - Lorimer,Frank
AU  - Osborn,Frederick
TI  - Dynamics of population: social and biological significance of changing birth rates in the United States 
AV  - HB3505 L67
U1  - 312.0973 
PY  - 1934///
CY  - New York
PB  - The Macmillan
KW  - Extranjeros
KW  - Estados Unidos
KW  - Condiciones sociales
ER  -