Epidemiology :
MacMahon, Brian, 1923 -
Epidemiology : principles and Methods / Brian MacMahon, Thomas F. Pugh - Boston : Little, Brown, 1970, - ix, 376 p.
0-316-54259-8
Epidemiologia -
614.4'9 / M113e
Epidemiology : principles and Methods / Brian MacMahon, Thomas F. Pugh - Boston : Little, Brown, 1970, - ix, 376 p.
0-316-54259-8
Epidemiologia -
614.4'9 / M113e