Cooperative National Park Resources Studies Unit, University of Arizona: Technical Report No. 9- Vegetation of Grand Canyon National Park

Tucson and San Francisco: National Park Service/University of Arizona, 1982. Paperback. 140pp. Quarto [28 cm] Stapled tan and black printed wraps. Very good. There is a small loss from the fore edge of the front wrap. There is also a 1 and 1/2" closed tear in the surface of the front wrap. With the appendix of scientific and common names of plants encountered during vegetation mapping.