Petrovitch Moussorgsky. From a playbill, <i>Théâtre des Champs-Elysées. Saison Russe</i>. 23 Mai 1913. <a rel="nofollow" class="external text" href="http://id.lib.harvard.edu/aleph/013696892/catalog">Ballets Russes Programs, 1907-1929 (MS Thr 965 [7</a>). Harvard Theatre Collection, Houghton Library, Harvard University
Unknown author<span style="display: none;">Unknown author</span>
1913-05-23
<bdi><a href="https://en.wikipedia.org/wiki/en:Houghton_Library" class="extiw" title="w:en:Houghton Library"><span title="library at Harvard University">Houghton Library</span></a>
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