| Title | {Ecological Systems of the United States: A Working Classification of U.S.\@ Terrestrial Systems} |
| Publication Type | Book |
| Year of Publication | 2003 |
| Authors | Comer, P., D. Faber-Langendoen, R. Evans, S. Gawler, C. Josse, G. Kittel, S. Menard, M. Pyne, M. Reid, K. Schulz, K. Snow, and J. Teague |
| Number of Pages | 83 |
| Publisher | NatureServe |
| City | Arlington, Virginia |



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