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Vol. 12, no. 1 (Fall 1979)-v. 12, no. 4 (Summer 1980)
v. 13, no. 2 (Winter 1980)-v. 13, no. 4 (Summer 1981)
v. 14, no. 2 (Winter 1981)
v. 15, no. 1 (Fall 1982)
v. 15, no. 4 (Summer 1983)-v. 16, no. 1 (Winter 1983)
v. 16, no. 3 (Spring 1984)
v. 17, no. 1 (Fall 1984)-v. 18, no. 2 (Winter 1986)
v. 19, no. 3 (Spring 1987)-v. 20, no. 2 (Winter 1987)