Developing efficient extension strategies: results of an experiment involving Costa Rican livestock producers
1990
Wadsworth, J. (Department of Agriculture and Horticulture, University of Reading, Reading RG6 2AP (United Kingdom))
AGROVOC关键词
书目信息
页码
pp. 259-275
其它主题
Betail; Evaluacion
语言
英语
注释
25 ref., BLDSC
1992-08-15
AGRIS AP
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