John S. Spencer

• Discovery Tools
• Forest products output in Utah and Nevada, 1962
• Indiana's timber resource, 1986
• Kansas forest inventory, 1981
• Michigan's fourth forest inventory
• Timber products output in Colorado, Wyoming, and western South Dakota, 1962
• Wisconsin's 1968 timber resource--a perspective
• Wisconsin's fourth forest inventory, 1983
• Arizona's forests
• Arizona's forests
• Indiana's timber
• Indiana's timber