| 1. |  | Pamphlet: A guide to the forest trees of Arizona and New Mexico | CCC, Civilian Conservation Corps | Pamphlet: A guide to the forest trees of Arizona and New Mexico - by William L. Chapel. - [Washington, D.C.]: U.S. Forest Service, January 1937. - 52 p.; b&w illus; 27 x 20.5 cm. [Paper bound in manila... |