. Spiral Bound. Quarto [26.5 cm] White, green and black printed wraps with a comb binding. Very good. There is a previous owner's inscription on the verso of the front cover. The pages are clean. Item #37807
Prepared by Grand Canyon National Park, National Park Service, Department of the Interior. Management proposal in which specific objectives are established, such as establishing an equitable and efficient method of handling permits, preserving water quality in side streams and the rivers, and establishing research monitoring programs.