Epidemiology for public health practice /
Friis, Robert H
Epidemiology for public health practice / Robert H. Friis and Thomas A. Sellers - 2nd ed. - Gaithersburg : Aspen Publishers, 1999 - xiv, 506 p. : ill., maps ; 23 cm.
0-8342-1178-5
Epidemiology
Public health personnel
RA651 / .F75 1999
Epidemiology for public health practice / Robert H. Friis and Thomas A. Sellers - 2nd ed. - Gaithersburg : Aspen Publishers, 1999 - xiv, 506 p. : ill., maps ; 23 cm.
0-8342-1178-5
Epidemiology
Public health personnel
RA651 / .F75 1999