1970s

1969-1970

• v. 3 no. 1 (Dec. 1969)
• v. 3 no. 2 (Feb. 1970)
• v. 3 no. 3 (May 1970)
• v. 3 no. 4 (Sept. 1970)

1970-1971

• v. 4 no. 1 (Dec. 1970)
• v. 4 no. 2 (Mar. 1971)
• v. 4 no. 3 (May 1971)
• v. 4 no. 4 (Aug. 1971)

1971-1972

• v. 5 no. 1 (Dec. 1971)
• v. 5 no. 2 (May 1972)
• v. 5 no. 3 (Sept. 1972)

1973

• v. 6 no. 1 (Jan. 1973)
• v. 6 no. 2 (Apr. 1973)
• v. 6 no. 3 (Sept. 1973)
• v. 6 no. 4 (Dec. 1973)

1974

• v. 7 no. 1 (Mar. 1974)
• v. 7 no. 2 (Jun. 1974)
• v. 7 no. 3 (Dec. 1974)

1975

• v. 8 no. 1 (Jan.-Mar. 1975)
• v. 8 no. 2 (Apr.-Jun. 1975)
• v. 8 no. 3 (Jul-Sept. 1975)
• v. 8 no. 4 (Oct.Dec. 1975)

1976

• v. 9 no. 1 (Jan.-Mar. 1976)
• v. 9 no. 2 (Apr.-Jun. 1976)
• v. 9 no. 3 (Jul-Sept. 1976)
• v. 9 no. 4 (Oct.Dec. 1976)

1977

• v. 10 no. 1 (MISSING)
• v. 10 no. 2 (Apr.-Jun. 1977)
• v. 10 no. 3 (Jul-Sept. 1977)
• v. 10 no. 4 (Oct.Dec. 1977)

1978

• v. 11 no. 1 (Jan.-Mar. 1978)
• v. 11 no. 2 (Apr.-Jun. 1978)
• v. 11 no. 3 (Jul-Sept. 1978)
• v. 11 no. 4 (Oct.Dec. 1978)

1979-1980

• v. 12 no. 1 (Jan.-Mar. 1979)
• v. 12 no. 2 (Apr.-Jun. 1979)
• v. 12 no. 3 (Jul-Sept. 1979)
• v. 12 no. 4 (Oct.Dec. 1979)
• v. 12 no. 5 (May 1980)
• v. 12 no. 6 (June 1980)