Austin, M.P. 1991. Vegetation: data collection and analysis. Pages 37-41 in C.R. Margules and M.P. Austin, eds. Nature conservation: cost effective biological surveys and data analysis. Australia CSIRO, East Melbourne.

EarthSat 1996. Comprehensive land cover mapping for the state of North Carolina. Detailed Study Design.

Jennings, M.D. 1993. Natural terrestrial cover classification: Assumptions and definitions. Gap analysis technical bulletin 2, U.S. Fish and Wildlife Service, Moscow, ID.

Jones, J., A. McKerrow, and P. Miller. 1995. Mapping Deciduous Forests for the Tennessee Gap Analysis Project. Proceedings GIS/LIS Conference, Nashville, TN. November 1995.

Keys, Jr., J., C. Carpenter, S. Hooks, F. Koenig, W.H. McNab, W. Russell, M.L. Smith. 1995. Ecological units of the eastern United States - First approximation (map and booklet of map unit tables). U.S. Department of Agriculture, Forest Service. Atlanta, GA.

McKerrow, A.J., S.G. Williams, J.A. Collazo. 2006. The North Carolina Gap Analysis Project: Final Report. North Carolina Cooperative Fish and Wildlife Research Unit, North Carolina State University, Raleigh, North Carolina. xiv + 110 pp. + appendices.

Pearlstine, L. 1995. Personal communication. National GAP Meeting. Fayetteville, Arkansas.

Peet, R. K, T.R. Wentworth, R. Duncan and P. S. White. 1996. The North Carolina vegetation survey protocol: A flexible, multipurpose method for measuring vegetation composition and structure.

Schafale, M. P. and A. S. Weakley. 1990. Classification of natural communities of North Carolina. Third approximation. North Carolina Heritage Program, N. C. Department of Environment, Health, and Natural Resources.

Scott, M. 1995. GAP: A Handbook for gap analysis. A geographic approach to planning for biological diversity. National Biological Survey. Version 1.

Scott, M., F. Davis, B. Csuti, R. Noss, B. Butterfield, C. Groves, H. Anderson, S. Caicco, F. D'Erchia, T.C. Edwards Jr., J. Ulliman and R.G. Wright. 1993. Gap Analysis: A geographic approach to protection of biological diversity. Wildlife Monographs, no. 123. The Journal of Wildlife Management. 57(1) 41pp.

Slaymaker, D. 1995 Massachusetts's 12 step process to a decision rule. Unpub.

Slaymaker, D., K.M. Jones, C. R. Griffin and J. T. Finn. In prep. Mapping deciduous forest in New England using aerial videography and multi-temporal landsat TM imagery.

Weakley, A. S., K. D. Patterson,S. Landaal, M. Gallyoun, and others (compilers). 1996. International classification of communities: Terrestrial vegetation of the Southeastern United States. Working draft of April 1996. The Nature Conservancy - Southeast Regional Office, Southern Conservation Science Dept., Community Ecology Group. Chapel Hill, NC.