Gilbert, Douglas R., “Spectators at WCFL Concert in Chicago,” Digital Collections, accessed March 17, 2025, https://digitalcollections.library.gvsu.edu/document/43497.
Black and white photograph of audience members at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. In the foreground a group of five dance in a circle with joined hands, while many others lounge around them on the grass. Scanned from the negative.