• 1930 - Di Giorgio Farms
• 1946 - The Fruit King
• 1966 - Di Giorgio Farm Workers [pdf]
• 1966 - New Election Agreed Upon
• 1967 - Agreement with Farm Workers
• 1979 - New Direction
• 1996 - Di Giorgio Corporation

• 1983 - Preliminary Guide to the Robert Di Giorgio Oral History Transcript

• 1991 - Robert Di Giorgio - obituary
• 2008 - Wartime Experiences of Joe DiGiorgio in Italy, WWII [audio]

see also:  http://en.wikipedia.org/wiki/DiGiorgio_Corporation