TY  - BOOK
AU  - Jones Gavin W
AU  -  Selvaratnam S
TI  - Population growth and economic development in Ceyl
T2  - Marga Institute
U1  - Y:50aX:77.4498.N7, L2 
PY  - 1972///
CY  - Colombo
PB  - Hansa publishers         
ER  -