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
Veterinary Toxicology is rapidly becoming recognized as a distinct discipline in veterinary medicine for several reasons. The use of chemicals for agricultural and household purposes has steadily increased during the last two decades, resulting in equally increased opportunities for poisoning in animals.
Buck, William B. and Marshall, Virginia
"Veterinary Toxicology - To Make a Diagnosis,"
Iowa State University Veterinarian: Vol. 28
, Article 2.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol28/iss1/2