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The rare 1977 fourth printing of the 1975 second edition is a great early history / reference on solar power architecture and design. After this period, it will be considered to be exactly as described, and the sale is then final.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.