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
The Veterinarian is provided by society with an amazingly broad and increasingly diverse range of opportunities to provide service in the practice of the art and science of the profession. A wide variety of challenges to his skills and knowledge characterize each veterinarian's day in whatever special niche of the profession he functions.
Graham, David L.
"Book Review: Doctor in the Zoo,"
Iowa State University Veterinarian: Vol. 37
, Article 9.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol37/iss1/9