1. Economically appropriate technologies for developing countries:   Publication: London : Intermediate Technology Development Group, 1976 . 101 p. Date:1976 Availability: Copies available: Turkeyen Campus Science & Technology [Ref T174.3 C37] (2), Actions: Add to cart
2. Economically appropriate technologies for developing countries:   Publication: London : Intermediate Technology Development Group, 1981 . 123 p. Date:1981 Availability: Copies available: Turkeyen Campus Science & Technology [Ref T174.5 C37 1981] (2), Actions: Add to cart

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