Growth of black walnut trees in eight midwestern states
Subtitle: a provenance test
By: Calvin F. Bey.
Contributors: North Central Forest Experiment Station (Saint Paul, Minn.)
Series: USDA Forest Service research paper NC -- 91.
Publisher: North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1973
Place of publication: [Saint Paul, Minn.]
Language: eng
Subjects: Eastern black walnut.; Walnut -- Growth.
Notes: Cover title.

"Manuscript approved for publication May 16, 1973."

Bibliography: p. 7.

Also issued online.