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 utilization of the products of the soybean plant during the past twenty years has been one of the outstanding achievements of science. In this paper it is our desire to emphasize the value of the soybean and its main product, soybean oil meal.
Simonsen, E. D. and Simonsen, D. W.
"Soybean Oil Meal as a Protein Supplement,"
Iowa State University Veterinarian: Vol. 2
, Article 5.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol2/iss1/5