Change.

v.3 1971/1972; v.4 1972/1973; v.5 1973/1974; v.6 1974/1975; v.7 1975/1976; v.8 1976; v.9 1977; v.10 1978/1979; v.11 1979; v.17 no.2-5 1985 + no.18 1986; v.20-21 1988-1989; v.21 1989; v.21 no.1-5 1989 + v.22 1990; v.22-23 1990-1991; v.23-24 1991-1992; v.24-25 1992-1993; v.25 1993; v.26 1994; v.26-27 1994-1995; v.27+ v.28 no.1-4,6 1995-1996; v.28 no.2-6 1996 Mar-Dec; v.28-29 1996-1997; v.31-32 1999-2000; v.34 no.1-6 2002 Jan-Dec; v.34 no.1-5 + v.35 2002-2003; v.1-3 index