19:54 duration 19 minutes 54 seconds
Robert Hamill oral history interview, 1983…
Robert Hamill oral history interview, 1983 September 28. Side B.
Dr. James Hansen interviews Bob Hamill in Fort Collins on September 28, 1983.
31:49 duration 31 minutes 49 seconds
Robert Hamill oral history interview, 1983 September 28. Side A.