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Vol. 6, no. 3 (Sep. 1980)-v. 6, no. 4 (Dec. 1980)
v. 7, no. 2 (Jun. 1981)-v. 8, no. 3 (Fall 1982)
v. 9, nos. 1 & 2 (Mar./Jun. 1983)-v. 10 (Spring/Summer 1984)
v. 10 (Winter 1984)-v. 11 (Spring 1985)
v. 11 (Oct. 1985)-v. 12, no. 4 (Oct. 1986)
v. 14, nos. 3 & 4 (Jul./Oct. 1988)-v. 15, no. 4 (Oct. 1989)
v. 17, no. 1 (Jan. 1990)-v. 17, no. 4 (Oct. 1990)
v. 25, no. 1 (Jan. 1999)