- As Long As They're Laughing!Robert Dwan · Midnight Marquee Press, Inc., 2000 · ISBN: 188766436X
- Groucho, Harpo, Chico and Sometimes ZeppoJoseph Adamson III · 1973
- Life With GrouchoArthur Marx · New York: Simon & Schuster, 1954
- The Groucho LettersArthur Sheekman · New York: Alfred Knopf, 1967
- Many Happy ReturnsGroucho Marx · New York: Farrar & Rinehart, 1929
- Groucho (1983)
- The Unknown Marx Brothers (1993)
- Slick Hare (1947)
- Hollywood Steps Out (1941)
- Golden Dreams (2001)
- Christmas Carol (1978)
- Wideo Wabbit (1956)
- Penthouse (US)"Groucho Marx"December 1973 · Vol. 5, Iss. 52, pg. 106-112 · by: Richard J. Anobile
- Gallery (US)"Groucho Marx"November 1973 · Vol. 2, Iss. 1 · by: Michael Goodwin
- Le Magazine Littéraire (FR)"Romain Gart. Groucho, Jésus, ma mère et moi."May 2014 · Iss. # 543, pg. pgs. 76-78 · by: Peillon, Pierre-Edouard
- The Orange County Register (US)"When covering Hollywood was more personal"November 14, 2010 · pg. Arts & Entertainment 2 · by: Associated Press
- Filmfax (US)"Time For Groucho: His Other Life in Television"March 2001 · Iss. 83, pg. 72-79+88 · by: Matthew Hickey
- TV Filmes (PT)1997 · Iss. 15, pg. 32-34
- Reader's Digest (US)"Personal Glimpses"December 1988 · pg. 160 · by: Lyndall Gordon
- Maasstad Weekbladen (NL)"The Marx Brothers 5 Filmklassiekers van dit kwartet"December 9, 2009 · Vol. 15, Iss. 50
- Esquire (US)July 1972
- Time (US)December 31, 1951
- Time (US)August 15, 1932
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