TY  - BOOK
AU  - Ramakumar,R.
TI  - Technical demography
SN  - 9789386286871
U1  - 519.5 
PY  - 2018///
CY  - New Delhi
PB  - New Age International
KW  - Demography-Statistical methods
KW  - Demographic surveys--Mathematical models
N1  - Includes bibliographical references and index
ER  -