National Theatre, Louis A. Lotito, managing director, Robert E. Griffith and Harold S. Prince (by arrangement with Roger L. Stevens) present a new musical "West Side Story" (based on a conception of Jerome Robbins), book by Arthur Laurents, music by Leonard Bernstein, lyrics by Stephen Sondheim and Leonard Bernstein, with Carol Lawrence, Larry Kert, Chita Rivera, Art Smith, Mickey Calin, Ken Le Roy, Lee Becker, David WInters, Tony Mordente, Eddie Roll, scenic production by Oliver Smith, costumes by Irene Sharaff, lighting by Jean Rosenthal, co-choreographer Peter Gennaro, production associate Sylvia Drulie, musical direction Max Goberman, orchestrations by Leonard Bernstein, with Sid Ramin and Irwin Kostal, entire production directed and choreographed by Jerome Robbins.