検索結果 - "Agricultural extension work Papua New Guinea Highlands Region."
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1
Agricultural extension in the village : two evaluation projects in the New Guinea highlands /
出版事項 1975主題: “…Agricultural extension work Papua New Guinea Highlands Region.…”
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2
Encouraging rural development : a study of the role of agricultural extension in eight Highlands villages /
出版事項 1974主題: “…Agricultural extension work Papua New Guinea Highlands Region.…”
図書 -
3
Pyrethrum and the Highlander
出版事項 1973主題: “…Agricultural extension work Papua New Guinea Highlands Region.…”
図書