Waddington, H., & White, H. (2014). Farmer field schools: From agricultural extension to adult education : 3ie systematic review summary 1. International Initiative for Impact Evaluation (3ie).
Citazione stile Chigago Style (17a edizione)Waddington, Hugh, e Howard White. Farmer Field Schools: From Agricultural Extension to Adult Education : 3ie Systematic Review Summary 1. London: International Initiative for Impact Evaluation (3ie), 2014.
Citatione MLA (9a ed.)Waddington, Hugh, e Howard White. Farmer Field Schools: From Agricultural Extension to Adult Education : 3ie Systematic Review Summary 1. International Initiative for Impact Evaluation (3ie), 2014.
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