"The E. Y. Berry Papers; An Unexpected Resource for Students of Recent South Dakota History"https://www.sdhspress.com/journal/south-dakota-history-3-1/the-e-y-berry-papers-an-unexpected-resource-for-students-of-recent-south-dakota-historyhttps://www.sdhspress.com/@@site-logo/sdshp-logo.jpg
"The E. Y. Berry Papers; An Unexpected Resource for Students of Recent South Dakota History"