Library has:
Microfilm no. 937:
v.1 (1960/1961)-v.17 (1977/1978)
v.18:no.1 (1978:Oct. 6)-v.18:no.12 (1978:Dec. 22).
Microfiche 4 x 6:
v.18 (1979)-v.21 (1981/1982)
v.22:no.1 (1982:Oct. 1)-v.22:no.41 (1983:July 15),
v.22:no.43 (1983:Aug. 5)-v.22:no.51 (1983:Sept. 30)
v.23 (1983/1984)-v.27 (1987/1988)
v.28:no.1 (1988:Oct. 7)-v.28:no.16 (1989:Jan. 27),
v.28:no.20 (1989:March 3)-v.28:no.50 (1989:Oct. 13)
v.29 (1989/1990)-v.34 (1995),
v.35:no.2 (1995:Oct. 13)-v.35:no.12 (1995:Dec. 22)+.