http://20page%2038.pdf the construction chart book, page 38, chart 38a
TRANSCRIPT
http://www.cpwr.com/sites/default/files/publications/CB%20page%2038.pdf
The Construction Chart Book, Page 38, Chart 38a.
http://www.cpwr.com/sites/default/files/publications/CB%20page%2043.pdf
The Construction Chart Book, Page 43, Chart 43a.
http://www.cpwr.com/sites/default/files/publications/CB%20page%2044.pdf
The Construction Chart Book, Page 44, Chart 44e.
http://www.cpwr.com/sites/default/files/publications/thumbnails/APHA%202013%20New%20coding%20Poster_Data%20Center.jpg
CPWR Data Center poster presentation, American Public Health Association, 2013.