Approaching Free Energy

Rodale Press, 1982. Moderate corner, edge wear. Pages very good. Topics include the sunspace, walls of warm air, insulate on the outside, trouble with windows, passive solar, the no-furnace house, guidelines for going underground and the new water wall. Includes glossary. 116 pages.. Soft cover. Very Good. 8vo - over 7¾ - 9¾" tall. Book.

Emmaus PA: Rodale Press, 1983. Wraps are rubbed on edges, tanning on spinecover.. Pages are clean with no markings in text.. Soft Cover. Good. 8vo - over 7¾" - 9¾" tall.

Rodale Press Inc., 1981. Trade Paperback - VG - Book is clean and tight with light wear - Illustrated.. Trade Paperback. Very Good.

1982: Rodale. Book 116p. 5 1/4" x 8 1/2" soft wraps. Prof. ill. w/b&w photos & diagrams. Tight copy w/some rubbing & soiling to wraps, clean within. VG

Rodale Press, 1982-01-01. Paperback. Good. Light cover wear, smooth spine, tight binding, lightly tanning pages, clean text Prompt, reliable service, shipped next business day. Int'l mailed via first class or priority.

Rodale. Good. 1982. Soft Cover. (G24) .