Incoming Resources
- Groucho, the life and times of Julius Henry Marx, Stefan Kanfer
- Groucho, Harpo, Chico, and sometimes Zeppo;, a history of the Marx Brothers and a satire on the rest of the world
- The Marx Brothers at the movies,, by Paul D. Zimmerman and Burt Goldblatt
- Why a duck?, visual and verbal gems from the Marx Brothers movies, edited by Richard J. Anobile ; introduction by Groucho Marx ; preface by Richard F. Shepard
- The Marx Brothers