Documentary leaflets.
| Corporate Author: | |
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| Format: | Journal |
| Language: | English French Spanish Italian |
| Language Notes: | Published in English, French Spanish and Italian. |
| Published: |
Rome :
Printing office of the International institute of agriculture.
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| Subjects: |
| Published: | 1st- year; July 1917- |
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| Physical Description: | volumes ; 24 cm. monthly. |