TY  - BOOK
AU  - Abramson,J.H.
TI  - Survey methods in community medicine : : an introduction to epidemi ology and evaluative studies / 
SN  - 0443030685
PY  - 1984///
CY  - Edinburgh : 
PB  - Churchill , 
KW  - Community Medicine
KW  - Health Surveys
N1  -  Includes bibliographical references and index
ER  -