Forest soils of the Douglas-fir region / compiled and edited by Paul E. Heilman, Harry W. Anderson, David M. Baumgartner.

I tiakina ki:

Ngā taipitopito rārangi puna kōrero
Putanga:	Rev. ed.
I whakaputaina:	Pullman : Washington State University, Cooperative Extension Service, 1981.
Kaituhi matua:	Heilman, Paul E., 1931-
Kaituhi rangatōpū:	Washington State University. Extension Service
Ētahi atu kaituhi:	Anderson, Harry William Baumgartner, David M.
Ngā marau:	Forest soils > Northwest, Pacific. Douglas fir.
Hōputu:	Pukapuka

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