Equis X.

no.7-9,18,20,36-7,39 1975-76; no.77-93 1977; no.94-96,98-114 1978; no.191-202 1980; no.203-10 1980; no.211-22 1980; no.223-236,238 1981; no.239-254 1981; no.255-271 1981; no.272-277,279-288 1982; no.289-306 1982; no.307-310,312-322 1982; no.323-338 1983; no.339-355 1983; no.356-371 1983; no.372-388 1984; no.389-404 1984; no.405-420 1984; no.421-436 1985; no.437-457 1985; no.458-470 1985; no.471-76,478-83 1986; no.484-496 1986; no.497-508 1986; no.509-520 1986; no.544-566 1987; no.567-590 1988; no.591-613 1988; no.614-635 1989; no.636-657 1989; no.658-694 1990; no.695-706 1991