If you want to buy the book, you might try calling Guenther Hall, Ltd. Nancy Stillwagon keeps on hand a good selection of coaster and amusement park related stuff, including out-of-print books. The flyer I have here is an old one, but it shows the following contact information:
Gunther Hall, Ltd.
P.O. Box 140
Bay Hill Rd.
Alton Bay, NH 03810
603-875-2248
It's an old flyer, so that area code may have changed. But it's worth a try anyway, and she may even have a web site. I have never dealt with the company myself, but every reference I've seen to them on r.r-c has been generally positive.
Good luck!
--Dave Althoff, Jr.