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- Adams, Paul W.4
- Adams, Richard M.1
- Adams, Russel M.1
- Adams, Thomas Cooper, 1918 1
- Adlerz, W. C. (Warren Clifford)1
- Agricultural Research Foundation (Or.)1
- Akerblom, Jonas1
- Alban, L. A. (Lawrence Arthur), 1922 19658
- Aldrich, W. W. (Willard Walker), 1901 2
- Alexander, G. I. (Graham Irving)2
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- Allison, Lonnie1
- American Society Of Agricultural Engineers. Meeting1