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
In an interview with Dr. W. P. Switzer, the following information was obtained concerning Bordetella rhinitis.
"Practical Detection of Bordetella Rhinitis in Swine Herds,"
Iowa State University Veterinarian: Vol. 31
, Article 9.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol31/iss3/9