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- 33030395 contributor B823501.
- 33030395 created "1929.".
- 33030395 date "1929".
- 33030395 date "1929.".
- 33030395 dateCopyrighted "1929.".
- 33030395 description "Abstract of thesis (Ph. D.)--Cornell University, 1929.".
- 33030395 extent "[6] p.".
- 33030395 issued "1929".
- 33030395 issued "1929.".
- 33030395 language "eng".
- 33030395 subject "630.7".
- 33030395 subject "Agriculture Study and teaching.".
- 33030395 subject "S534.N7 O4 1929".
- 33030395 title "A knowledge analysis of pupils as a factor in determining teaching content in agricultural courses. A survey of 157 high school pupils in the potato enterprise in nine patronage areas of New York State ... By Roy A. Olney.".
- 33030395 type "text".