H Schrenk

Public health bulletin. N°...

Public health bulletin. N°...

1949

Public health bulletin. N°... 32-59, 61, 63-75, 77-184, 186-210. [Fascicules déjà en place sous la même cote.]

Public health bulletin. N°... 32-59, 61, 63-75, 77-184, 186-210. [Fascicules déjà en place sous la même cote.]

1934

Air pollution in Donora, Pa., epidemiology of the unusual smog episode of October 1948, preliminary report . [Prefaces by Oscar R. Ewing and Leonard A. Scheele. Origin of study by J. G. Townsend and J. J. Bloomfield.]

Air pollution in Donora, Pa., epidemiology of the unusual smog episode of October 1948, preliminary report . [Prefaces by Oscar R. Ewing and Leonard A. Scheele. Origin of study by J. G. Townsend and J. J. Bloomfield.]

1949