Serial. Printed Ephemera Collection has: v.1:no.1, v.2:no.2, 1980:Jan./Feb.-1980:May/June, 1981:Feb./Mar., 1985:Nov.ed., 1986:Feb.ed., 1986:May ed., 1986:Oct., 1986:Dec., 1987:Feb., 1993:Nov. Some issues lack enumeration and chronology.