Richard Barr, a producer and director who presented many of Edward Albee's plays on and off-Broadway including "Who's Afraid of Virginia Woolf?," "A Delicate Balance" and "Seascape," died Monday of liver failure.

At the time of his death, Barr, 71, was president of the League of American Theaters and Producers and was preparing a new Albee drama, "Marriage Play" for Broadway.Barr was a champion of many new playwrights, presenting some of the first works by such authors as Sam Shepard, Lanford Wilson, John Guare, A.R. Gurney and Terrence McNally through the Playwrights' Unit, a company he founded with Albee and Clinton Wilder.

Barr began his theater career in the late 1930s working for Orson Welles' Mercury Theater and was a production assistant for Welles' radio program "War of the Worlds." He also worked as Welles' executive assistant on the film "Citizen Kane."

Among Barr's other successes were "The Boys in the Band" in 1968 and "Sweeney Todd," the Stephen Sondheim musical, in 1979.

He is survived by his mother, Ruth, and two sisters, Carol Fischer and Barbara Luchs, all of Washington.