Rodgers, R. Androcles and the lion. [Phonodisc] 1967.
Halliwell's filmgoer's & video viewer's companion, 11th ed. (Stone, Peter, 1930- ; American screenwriter; uses pseudonyms Pierre Marton, Quentin Werty)
The truth about Charlie, 2003 credits (Peter Joshua)
Contemporary theatre, film & television, v. 6 (Stone, Peter, b. Peter Hess Stone, 2/27/1930; playwright, screenwriter)
New York times, Apr. 28, 2003 (Peter Stone, 73, writer of books for musicals; d. Apr. 26, 2003, Manhattan; sometimes wrote under the pseudonym Pierre Marton)
IMDb, Sep. 2, 2010 (Peter Stone; alternate names: Peter Joshua [for The truth about Charlie, based on his screenplay for Charade written as Peter Stone]; Pierre Marton).