O’Keefe, Terrence (2003). "A Slice of the Future"(PDF). West Liberty Foods. Archived from the original(PDF) on March 29, 2006. Retrieved June 30, 2006.
"The Iowa Phoenix". Meat Processing. October 2000. Archived from the original on March 29, 2006. Retrieved August 14, 2006.
O’Keefe, Terrence (2003). "A Slice of the Future"(PDF). West Liberty Foods. Archived from the original(PDF) on March 29, 2006. Retrieved June 30, 2006.
"The Iowa Phoenix". Meat Processing. October 2000. Archived from the original on March 29, 2006. Retrieved August 14, 2006.