B.S. & T. newsletter

1971 - no. 3 September

1972 - no. 10 December

1973 - nos. 11 - 14 ; no. 15 November

1974 - no. 16 January ; no. 17 March ; no. 18 May ; no. 19 July ; no. 20 September ; no. 21 November

1975 - no. 22 February ; no. 23 April ; no. 24 July ; no. 25 September ; no. 26 December

1976 - no. 27 February ; no. 28 May ; no. 29 July ; no. 30 September ; no. 31 December

1977 - no. 32 March ; no. 33 August ; November

1978 - no. 36 February ; no. 37 April ; no. 38 July ; no. 39 October

1979 - no. 40 February ; no. 43 November

1980 - no. 44 February ; no. 45 June ; no. 47 December

1981 - no. 49 April ; no. 50 July ; no. 51 October ; no. 52 December

1982 - no. 53 February ; no. 54 April ; no. 55 August ; no. 56 November

1983 - February, April ; no. 59 June ; no. 61 December