TY  - BOOK
AU  -  Thomas, Robert Malthus.
TI  -  First essay on population: 1798  
U1  -  304.6 THO 
PY  - 1926///
CY  -  London
PB  -  Macmillan and Co. Ltd.
KW  -  Human population
KW  -  Population Human
ER  -