Mary, unfortunately, my book, written in the early 1970s, is out of print. If you're interested in a copy, they sometimes show up at estate sales. I can also check with family members and friends to see if they have a spare copy.
My wife and I are among the few who have returned to the Amanas. Occasionally, when the economy is not doing well, a few folks return to live with family members while they seek employment, but at some point, they usually leave again.