http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
official catalogue : Royal Dublin Society Spring Show and Industries Fair, May 7th, 8th, 9th, 10th & 11th
"Royal Dublin Society, Ball's Bridge, Dublin, Spring Show, May 7th, 8th, 9th, 10th & 11th, 1968"--Page 1.