Twenty-year growth of ponderosa pine saplings thinned to five spacings in central Oregon /

Chicago citation style
Barrett, James W. (James Willis), 1922-. Twenty-year growth of ponderosa pine saplings thinned to five spacings in central Oregon /. [1982]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007413919. (Accessed December 15, 2018.)
APA citation style
Barrett, James W. (James Willis), 1922-, ([1982]) Twenty-year growth of ponderosa pine saplings thinned to five spacings in central Oregon /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007413919
MLA citation style
Barrett, James W. (James Willis), 1922-. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/007413919>.
Note: These citations are programmatically generated and may be incomplete.