* ''The Soviet World of American Communism'', Harvey Klehr, John Earl Haynes, Kyrill M. Anderson, Yale University Press, 1996, p. 187, 190, Document 54.
* ''The Soviet World of American Communism'', Harvey Klehr, John Earl Haynes, Kyrill M. Anderson, Yale University Press, 1996, p. 187, 190, Document 54.