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How lumber is graded

nam a22 7a 4500
230311b1933 ii d00 0 tam d
_ _ |a 43279
_ _ |a IN-ChTVA |d IN-ChTVA
0 _ |a Betts, H. S.
0 0 |a How lumber is graded |c by H. S. Betts and R. K. Helphenstine
_ _ |a Washington, D. C. |b The superintendent Washington, D. C. |c 1933
_ _ |a 48 p.
0 _ |a United states Department of agriculture department circular no. 64
_ _ |a In English
0 0 |a Helphenstine, R. K.
_ 0 |a Science
0 _ |a Hardwood lumber, Redwood, Western hemlock.
_ _ |8 தமிழ்நாடு வேளாண்மை பல்கலைக்கழகம் |8 tamiḻnāṭu vēḷāṇmai palkalaikkaḻakam
_ _ |a TVA_BOK_0043279
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