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- 68063675 contributor B1873323.
- 68063675 created "1967]".
- 68063675 date "1967".
- 68063675 date "1967]".
- 68063675 dateCopyrighted "1967]".
- 68063675 description "Bibliographical footnotes.".
- 68063675 extent "73 p.".
- 68063675 isPartOf "Bulletin (University of Illinois at Urbana-Champaign. Agricultural Experiment Station) ; 726.".
- 68063675 isPartOf "University of Illinois College of Agriculture. Agricultural Experiment Station bulletin 726".
- 68063675 issued "1967".
- 68063675 issued "1967]".
- 68063675 language "eng".
- 68063675 publisher "[Urbana,".
- 68063675 spatial "United States.".
- 68063675 subject "331.1/1".
- 68063675 subject "Agriculture Labor productivity United States.".
- 68063675 subject "HD1761 .D687".
- 68063675 title "Productivity of labor in agricultural production.".
- 68063675 type "text".