TY  - BOOK
AU  - Thompson,Warren Simpson
TI  - Population problems / 
U1  - 301 T48p 
PY  - 1942///
CY  - New york ; London : 
PB  - McGraw-Hill, 
KW  - Introduction to the study of population -- Malthus's place in the study of population -- Some population theories since malthus -- population presure and its palitical implications
N1  - References and questions  al final de cada capt̕ulo; Notas bibliogrf̀icas al pie del texto
ER  -