Upcoming Book Sales
The Friends of the Omaha Public Library run the library book sales. You can search some of their stock online at http://www.alibris.com/stores/omahafop?cid=null. They do seem to have a copy of it. This is not all their inventory, however, just the more valuable books--I'm not sure they have a list of everything they have. You could try contacting them at http://friendsomahalibrary.org/blog/wordpress/contact-us/ or by calling 402-996-8320.
You can also search for books from many used-book sources at http://www.bookfinder.com/. You will find a range of prices and editions there.
I hope this helps!