Interview with Clyde W. Tombaugh, September 11, 1987, Side B, 1987 September 11

Interview with Clyde W. Tombaugh, September 11, 1987, Side B, 1987 September 11, http://hdl.handle.net/10176/488ea02f-fc54-4594-87ec-c7bc3bb1f6cf. Special Collections and Archives. https://duarchives.coalliance.org/repositories/2/digital_objects/21256 Accessed April 25, 2024.