Amazing What You Can Find on the Internet
Here is a 1982 radio play version of Robert Heinlein’s 1941 yarn ‘By His Bootstraps’ which may be the definitive time paradox story of all time:
http://www.radiodramarevival.com/episode-177-robert-heinleins-by-his-bootstraps/
In case you don’t recognize the voice, the belligerent drunk time-traveler snarled in his own paradox is Richard Dreyfuss.