G/C/T.

no.1 1978 Jan/Feb; no.2 1978 March/April; no.3 1978 May/June; no.4 1978 Sept/Oct; no.5 1978 Nov/Dec; no.6 1979 Jan/Feb; no.7 1979 Mar/April; no.8 1979 May/June; no.9 1979 Sept/Oct; no.10 1979 Nov/Dec; no.11 1980 Jan/Feb; no.12 1980 Mar/April; no.13 1980 May/June; no.14 1980 Sept/Oct; no.15 1980 Nov/Dec; no.16 1981 Jan/Feb; no.17 1981 Mar/April; no.18 1981 May/June; no.19 1981 Sept/Oct; no.20 1981 Nov/Dec; no.21 1982 Jan/Feb; no.22 1982 Mar/April; no.23 1982 May/June; no.24 1982 Sept/Oct; no.25 1982 Nov/Dec; no.26 1983 Jan/Feb; no.35 1984 Nov/Dec; no.38 1985 May/June; no.39 1985 July/Aug; no.40 1985 Sept/Oct; no.42 1986 Jan/Feb; no.44 1986 May/June; no.45 1986 July/Aug