Anon.n.d. Forest Damage by Distantly Transported Air Pollution.

Douglass, AE. Anon.n.d. Height of the San Francisco Mountains and Other Points.

Katz, Morris, Atkinson, HJ, and Wyatt, FA. Anon.n.d. The Hydrogen Ion Concentration Base Exchange Capacity and Sulphate Content of Soils. In .

Douglass, AE. Anon.n.d. Montezuma's Well and the Soda Spring, Arizona.

Hotvedt, James E, and Jackson, Ben D. Anon.n.d. Predicting Growth and Yield in the Mid-South. In 31st Annual Forestry Symposium. 31st Annual Forestry Symposium. Baton Rouge: School of Forestry and Wildlife Management, Division of Continuing Education Louisiana State University.

Ferguson, CW. Anon.n.d. Report on the Chronology Phase of the Bristlecone Pine Study. Tucson: Laboratory of Tree-Ring Research.

Douglass, AE. Anon.n.d. Tree Ring Dates and Dating of Southwestern Prehistoric Ruins.