TY  - BOOK
AU  - Pollard,A.H.
TI  - Demographic techniques
SN  - 0-08-040065-5
AV  - ECO HB881.P64 
PY  - 1974///.
CY  - Sydney : 
PB  - Pergamon Press
KW  - Demography
KW  - Methodology
N1  - Includes bibliographical references and index
ER  -