Modernizing world agriculture; a comparative study of agricultural extension education systems
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格式: | 图书 |
语言: | English |
出版: |
New York,
Praeger
[1972]
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丛编: | Praeger special studies in international economics and development
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主题: |
实物描述: | xv, 216 p. illus. 25 cm. |
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参考书目: | Bibliography: p. 214-216. |