The Online Books Page

Books by Martin W. Ritchie:

Books in the extended shelves:

• Ritchie, Martin W.: A compendium of forest growth and yield simulators for the Pacific Coast states (U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station, 1999), also by Pacific Southwest Research Station (page images at HathiTrust)
• Ritchie, Martin W.: Crown area equations for 13 species of trees and shrubs in northern California and southwestern Oregon (U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station, 1996), also by Fabian C. C. Uzoh and Calif.) Pacific Southwest Forest and Range Experiment Station (Berkeley (page images at HathiTrust)
• Ritchie, Martin W.: User's guide for SYSTUM-1 (Version 2.0) : a simulator of growth trends in young stands under management in California and Oregon (U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station, 1993), also by Robert F. Powers and Calif.) Pacific Southwest Forest and Range Experiment Station (Berkeley (page images at HathiTrust)

Find more by Martin W. Ritchie at your library, or elsewhere.