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
Nitrate toxicity in ruminants has caused a great deal of interest in the past few years, and many articles have appeared in various journals dealing with this problem. However, various investigators have arrived at so many different conclusions that it is difficult to know just when nitrate poisoning is or is not a problem.
Iowa State University Veterinarian
"An Experimentally Induced Case of Acute Nitrate Toxicity,"
Iowa State University Veterinarian: Vol. 28
, Article 3.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol28/iss1/3