BARKER, D.J.P.
Practical epidemiology - Edinburgh ELBS/Churchill Livingstone 1976. - 180 p.
Includes index.
0-443-01932-0
614.4 / BAR
Practical epidemiology - Edinburgh ELBS/Churchill Livingstone 1976. - 180 p.
Includes index.
0-443-01932-0
614.4 / BAR