Biodiversity Heritage Library
By "Langfeld, Millard, 1872-"
Introduction to infectious and parasitic diseases, including their cause and manner of transmission, by Millard Langfeld, with an introduction by Lewellys F. Barker.
By: Langfeld, Millard,
Publication info: Philadelphia :P. Blakiston,1907.
Contributed by: University of California Libraries (archive.org)