22nd Edition 157 pages
Courtesy of INDIANA LIMESTONE INSTITUTE
Specifications, Tech Notes, Glossary: 19 pages
Courtesy of INDIANA LIMESTONE INSTITUTE
24 page 
How To Idea Hand book  Courtesy of INDIANA LIMESTONE INSTITUTE
24 page guide Courtesy of INDIANA LIMESTONE INSTITUTE
6 Page E-Book on Limestone Design Applications
Courtesy of INDIANA LIMESTONE INSTITUTE