RWDSU Record, 8 (13), July 2, 1961, p. 13; 9 (13), July 1, 1962, p. 3; 9 (14), July 15, 1962, p. 4; 9 (15), August 12, 1962, p. 2; 10 (9), May 5, 1963, p. 2; 10 (11), June 2, 1963, p. 2; 10 (13), June 30, 1963, p. 3.