Changes in technology and labor requirements in crop production sugar beets
| Egile nagusia: | |
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| Beste egile batzuk: | , , |
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Philadelphia, Pa.
s.n.
1937.
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| Saila: | Half-title : National research project on reemployment opportunities and recent changes in industrial techniques...Studies of changing techniques and employment in agriculture...[Report no. A-1]
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| Gaiak: |