| Most libraries will be happy to get a book on loan from elsewhere for you. Ask them. Specialized books are usually quite expensive($30 or so) as you have discovered.
Important knowledge usually doesn't arrive by divine inspiration - we get it from others and when we are very lucky, they write it down to share. The wonders of Gutenburg!
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"The scientific name for an animal that doesn't either run from or fight its enemies is lunch."-Michael Friedman |