Biblioteksøk

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Biotechnology and agricultural development : transgenic cotton, rural institutions and resource-poor farmers

edited by Robert Tripp
Bok Engelsk 2009

Self-sufficient agriculture : labour and knowledge in small-scale farming

Robert Tripp ; with Catherine Longley ......
Bok Engelsk 2006

Seed provision & agricultural development : the institutions of rural change

Robert Tripp
Bok Engelsk 2001

New seed and old laws : regulatory reform and the diversification of national seed systems

edited by Robert Tripp
Bok Engelsk 1997

Planned change in farming systems : progress in on-farm research

edited by Robert Tripp
Bok Engelsk 1991

The planning stage of on-farm research : identifying factors for experimentation

Robert Tripp and Jonathan Woolley
Bok Engelsk 1989

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