International classification of ecological communities: terrestrial vegetation of the United States. Volume II. The National Vegetation Classification System: list of types

Authors:

Anderson, M.; P. Bougeron; M. T. Bryer; R. Crawford; L. Engelking; D. Faber-Langendoen; M. Gallyoun; K. Goodin; D. H. Grossman; S. Landaal; K. Metzler; K. D. Patterson; M. Pyne; M. Reid; L. Sneddon; A. S. Weakley