Benjamin Ruhe, "Boomerang" (Minner Press, 1982)
US paperback. Acceptable condition. Clean pages. Significant wear and creasing to cover, including front bottom right cover corner fold.
A fascinating look at the boomerang, from its history to the science behind it, with plans to build your own, instructions for setting up competitive matches, and much more!
**
113pp
shipping weight: 8 ounces.