Intra-ring variations in mature Douglas-fir trees from provenance plantations
By: by Abdelazim Yassin Abdel-Gadir.
Published: 1990
Language: eng
Number of pages: 168
Subjects: Douglas fir -- Genetics.; Wood -- Density.
Notes: Typescript (photocopy)

Thesis (Ph. D.)--Oregon State University, 1991.

Includes bibliographical references (leaves 138-150)