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 two year old Hereford cow was admitted to Stange Memorial Clinic Feb. 23, 1948, following the diagnosis by a local veterinarian of a vaginal tumor.
"Eversion of the Bladder in A Bovine,"
Iowa State University Veterinarian: Vol. 10
, Article 12.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol10/iss3/12