RWDSU Record, 21 (4), April, 1974, p. 5; 21 (7), July, 1974, p. 4; 21 (8), August, 1974, p. 4; 21 (10), October, 1974, p. 5; 21 (11), November, 1974, p. 4; 21 (12), December, 1974, p. 16; 22 (1), January, 1975, p. 4; 22 (2), February, 1975, p. 10; 23 (1), January, 1976, pp. 3, 10; 23 (7), July, 1976, p. 11; 24 (10), October, 1977, p. 8; 24 (11), November, 1977, pp. 7, 9; 24 (12), December, 1977, p. 3; 26 (3), March, 1979, p. 13; 26 (4), April, 1979, p. 12; 26 (8), August, 1979, p. 13; 26 (9 10), September October, 1979, p. 4; 26 (12), December, 1979, p. 8; 27 (6 7), June July, 1980, p. 11.