- Will you help build a better world?
- Vol. 1, no. 2
- Vol. 1, no. 3
- Vol. 1, no. 4 (December 23, 1970)
- Vol. 2, no. 1 (February 15, 1971)
- Vol. 2, no. 2 (July 13, 1971)
- Vol. 2, no. 3 (October 27, 1971)
- Vol. 2, no. 4 (Nov. 17, 1971)
- Vol. 2, no. 5 (Dec. 1, 1971)
- Vol. 3, no. 1 (1/27/72)
- Vol. 3, no. 2 (3/23/72)
- Vol. 3, no. 4 (5/23/72)
- Vol. 3, no. 5
- Vol. 3, no. 6 (10-18-72)
- Vol. 3, no. 7 (11/20/72)
- Vol. 3, no. 8
- Vol. 4, no. 1 (3/23/73)
- Vol. 4, no. 2 (4/14/73)
- Vol. 4, no. 3 (5-1-73)
- - p. 1

- Vol. 4, no. 4 (5/16/73)
- Vol. 4, no. 5 (5-31-73)
- - p. 1

- Vol. 4, no. 6 (7-5-73)
- Vol. 4, no. 7 (8/20/73)
- Vol. 4, no. 8 (10/24/73)
- Vol. 4, no. 9 (10/29/73)
- Vol. 5, no. 1 (1/15/74)
- Vol. 5, no. 2 (2/22/74)
- Vol. 5, no. 3 (4/10/74)
- Vol. 5, no. 8 (11-25-74)
- Vol. 7, no. 1 (1/26/76)
- Vol. 7, no. 2 (4/15/76)
- Vol. 7, no. 3 (6/3/76)
- Vol. 7, no. 4 (8/26/76)
- Vol. 7, no. 5 (Revised 11/16/76)
- Vol. 7, no. 6 (12/27/76)
- Vol. 8, no. 1 (4/19/77)
- Vol. 8, no. 2 (8/20/77)
- Vol. 8, no. 3 (9/1/77)
- Vol. 8, no. 4 (9-24-77)
- Vol. 8, no. 5 (10/12/77)
- Vol. 8, no. 6 (11/1/77)
- Vol. 8, no. 8 (12/5/77)