TY  - BOOK
AU  - Susser,Mervyn
TI  - Causal thinking in the health sciences: concepts and strategies of epidemiology
U1  - 614.49 
PY  - 1979///
CY  - London
PB  - Oxford University Press
KW  - Epidemiology
KW  - Epidemics
KW  - Communicable disease
N1  - Includes bibliographical references and index
ER  -