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- Appropriate technology
Appropriate technology Research (Término temático)
Machine generated authority record.
Work cat.: (OSt)302: Hildebrand, Peter E. 12421, Ensayos agronómicos en fincas :, 1989.
Machine generated authority record.
Work cat.: (OSt)302: Hildebrand, Peter E. 12421, Ensayos agronómicos en fincas :, 1989.