TY  - BOOK
AU  - Boslaugh, Sarah
TI  - Secondary data sources for public health : : a practical guide
T2  - Practical Guides to Biostatistics and Epidemiology
SN  - 9780521690232
U1  - 362.10727 BOS 
PY  - 2007///
CY  - Cambridge
PB  - Cambridge University, 
KW  - Public health -research- statistical methods
KW  - Epidemiology - research - statistical methods
N1  - Includes bibliographical references and index p.129 - 152
ER  -