1994 video interview recorded in Malibu, California with Rudolph Challis Bretz (1914-1997).
A portion of this interview was featured late in Session Z of the Ice Age Floods A to Z livestream series:    • Episode Z - Ice Age Floods Roundtable...  
Charlie Mullen conducted the interview. Geologist Richard Waitt was present.
J Harlen Bretz (1882-1981).