ID:DA14221799
Betts, Harold S.
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by H.S. Betts
Forest Service, U.S. Dept. of Agriculture 1960 rev. [ed.] American woods / Forest service, U.S. Department of agriculture
Available at 1 libraries
by H.S. Betts and R.K. Helphenstine, Jr
[U.S. Govt. Print. Off.] 1933
by Harold S. Betts
MaGraw-Hill 1919
Available at 18 libraries