Chenoweth, Barbara A. 1999. Census of Maine Manufactures 1997. pp 6 Figure 6.

Field, David B. 1999. The Economic Importance of Maine's Forestry Sector. A paper presented at the Seminar of the Future of Jobs in Maine's Forest Products and Paper Industry

Rice, R. 1999. Task Force to Increase Primary and Secondary Forest Products Manufacturing, FInal Report, unpublished.