Kline, Jeffrey D. and Alig, Ralph J. 2005. Forestland development and private forestry with examples from Oregon (USA) Forest Policy and Economics p. 709-720.
A True American Tragedy “The Indian Extermination” 1860 – 1890 Civil War and Post Civil War.
Erosion & Sediment Control. Wind Erosion Water Erosion.
A True American Tragedy “ The Indian Extermination”