5803X1 First Edition. Hawthorne Books, NY: 1975. 183 pages. Softcover. Good condition except for very slight crease on front cover. All about the Sport of Sky-Sailing from its earliest origins to today's techniques. Here is a richly detailed book on the subject, ranging from history to how-to speculation on the possibility of human-powered flight in the future. Contains numerous photos and an Index. ISBN: 0801532736 $7.75USD
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