By Christensen Ronald   in Quality Engineering

ISSN:0898-2112|19|2|149-151

Taylor & Francis Ltd‎(2007)‎

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By Christensen Ronald R.   in Journal of Forestry

ISSN:0022-1201|79|4|200-231

Society of American Foresters‎(1981)‎

Access to resources Favorite 12.1402855

By Christensen Ronald R.   in Journal of Forestry

ISSN:0022-1201|81|10|660-662

Society of American Foresters‎(1983)‎

Access to resources Favorite 12.1402855

By Christensen Ronald R.   Heinrichs Jay   in Journal of Forestry

ISSN:0022-1201|83|7|412-418

Society of American Foresters‎(1985)‎

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