TY  - BOOK
AU  - Pollard, Alfred Hurlstone,
AU  - Yusuf, Farhat
AU  - Pollard, G. N.
TI  - Demographic techniques
SN  - 0080173780
U1  - 304.6018 
PY  - 1974///
CY  - Rushcutters Bay
PB  - Pergamon Press
KW  - Demography
KW  -  Methodology
N1  - Includes bibliographical references and index
ER  -