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Economic, environmental, and health tradeoffs in agriculture : pesticides and the sustainability of Andean potato production
edited by Charles C. Crissman, John M. An...
Bok Engelsk 1998
Case studies of the economic impact of CIP-related technologies
T.S. Walker and C.C. Crissman
Bok Engelsk 1996
Seed potato systems in Kenya : a case study
Charles C. Crissman, Linda McArthur Criss...
Bok Engelsk 1993