Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
Doctor Carlos T. Rosenbusch presented as his thesis for the degree Doctor of Philosophy, which he obtained at the December graduation, "Some Studies on Swine Influenza" with particular reference to a comparative study of Hemophilus influenzae suis and Hemophilus influenzae and the antibody response to experiment swine influenza. The work was done at the Rockefeller Institute at Princeton, New Jersey, under the supervision of Dr. Richard E. Shope who has gained worldwide recognition for his studies on swine influenza.
The Veterinary Student
"Some Studies on Swine Influenza,"
Iowa State University Veterinarian: Vol. 1
, Article 10.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol1/iss2/10