2011
2011 Spring Seed Book, Nebraska Crop Improvement Association
2010
2010 Fall Seed Book, Nebraska Crop Improvement Association
2010 Spring Seed Book, Nebraska Crop Improvement Association
2009
2009 Fall Seed Book, Nebraska Crop Improvement Association
2009 Spring Seed Book, Nebraska Crop Improvement Association
2008
2008 Fall Seed Book, Nebraska Crop Improvement Association
2008 Spring Seed Book, Nebraska Crop Improvement Association
2007
2007 Fall Seed Book, Nebraska Crop Improvement Association
2007 Spring Seed Book, Nebraska Crop Improvement Association
2006
2006 Fall Seed Book, Nebraska Crop Improvement Association
2006 Spring Seed Book, Nebraska Crop Improvement Association
2005
2005 Fall Seed Book, Nebraska Crop Improvement Association
2005 Spring Seed Book, Nebraska Crop Improvement Association
SEED CERTIFICATION STANDARDS, Nebraska Crop Improvement Association