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Handy Geotechnical Instruments, Inc.
1502 270th Street
Madrid, IA 50156 USA
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- "Geotechnical Engineering," 5th Ed. by Handy and Spangler has been published by McGraw-Hill and is available from Amazon.com
- "The Day the House Fell" by Handy is intended for non-specialists and is available from ASCE and Amazon.com. It is in its 5th printing, which is crazy.

