2.
What Makes a Computer Work? - Dan Halacy - Hardcover
by Halacy, Dan, Goldstein, Nathan
ISBN: 9780316338301
List Price: $5.95
OUT OF STOCK
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Cooking with the Sun: How to Build and Use Solar Cookers - Dan Halacy - Paperback - REVISED
by Halacy, Beth, Halacy, Dan
ISBN: 9780962906923
List Price: $9.95
7.
Soaring - Dan Halacy - Hardcover
by Halacy, Dan, Tallon, James
ISBN: 9780397312481
List Price: $7.95