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Subject Term
- information centers[remove]6
- National Agricultural Library (NAL)3
- libraries3
- Agricultural On-Line Access (Agricola)2
- Four H2
- agriculture research2
- diffusion of information2
- extension2
- information services2
- youth2
- Commonwealth Agricultural Bureaux (CAB)1
- Ghana1
- Hungary1
- Maryland, USA1
- Philippines1
- USDA1
- USSR1
- education effects1
- educational needs1
- extension agents1