TY  - BOOK
AU  - Kleinbaum, David G.
AU  - Kupper, Lawrence L.
AU  - Morgenstern, Hal.
TI  - Epidemiologic research: principles and quantitative methods 
SN  - 0534979505
U1  - 614.4072 
PY  - 1982///
CY  - New York
PB  - Van Nostrand Reinhold
KW  - Epidemiology
KW  -  Research
KW  -  Methodology
KW  - Epidemiologic methods
N1  - Includes bibliographical references and index
ER  -