Short keys to the trees of Oregon and Washington
By: by Hugo Winkenwerder.
Contributors: University of Washington. College of Forestry.
Edition: 3d ed.
Publisher: Dept. of Printing, University of Washington]
Published: 1914
Place of publication: [Seattle
Language: eng
Number of pages: 16
Subjects: Trees -- Oregon.; Trees -- Washington (State).
Notes: At head of title: University of Washington. College of forestry.