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
A 5- weeks old hereford bull calf was admitted to the Stange Memorial Clinic on March 15, 1950, with the owner's history of enlargements on the jaws since birth.
Searl, R. C.
"Corynebacterium Pyogenes Infection in a Hereford Calf,"
Iowa State University Veterinarian: Vol. 12
, Article 18.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol12/iss3/18