TY  - BOOK
AU  - Ramakumar,R, Gopal, Y S
AU  - x
TI  - Technical demography: x
SN  - 0852267436
U1  - 312/R165t 
PY  - 1986///
CY  - New Delhi
PB  - New Age International
KW  - Demography
KW  - Statistics
N1  - Includes
ER  -