Tag Holstein USA December 2010
Semex UK - Holstein Sire Directory August 2012
TAG - Holstein sires
TAG - jersey usa
TAG Elite Genomic Sire Listing
Holstein Listing Sire canada
Holstein sire listing Canada
Holstein Canada Sire listing
Crossbreeding Directory August 2012
August 2014 Crossbreeding Directory
Semex August 2014 International Holstein Catalogue
