No. Title Date
21 Update (Vol. 3, No. 6) 1976-08
22 Update (Vol. 4, No. 1) 1976-10
23 Update (Vol. 4, No. 2) 1976-12
24 Update (Vol. 4, No. 3) 1977-02
25 Update (Vol. 4, No. 4) 1977-04
26 Update (Vol. 4, No. 5) 1977-06