27.
Farmer First: Farmer Innovation and Agricultural Research
by Pacey, Arnold, Thrupp, Lori...
ISBN: 9780942850161
List Price: $23.50
28.
Hand-Pump Maintenance in the Context of Community Well Projects
by Pacey, Arnold
ISBN: 9780903031707
List Price: $12.00
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Maze of Ingenuity Ideas and Idealism in the Development of Technology
by Pacey, Arnold
ISBN: 9780841901810
List Price: $37.95
31.
Rainwater Harvesting The Collection of Rainfall and Runoff in Rural Areas
by Pacey, Arnold, Cullis, Adrian
ISBN: 9780946688227
List Price: $26.95
32.
The Maze of Ingenuity: Ideas and Idealism in the Development of Technology
by Pacey, Arnold
ISBN: 9780262660303
List Price: $11.95
33.
Development Dialogue Rainwater Harvesting in Turkana
by Cullis, Adrian, Pacey, Arnold
ISBN: 9781853391040
List Price: $26.95
34.
Development Dialogue Rainwater Harvesting in Turkana
by Cullis, Adrian, Pacey, Arnold
ISBN: 9781853391163
List Price: $50.00
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Farmer First Farmer Innovation and Agricultural Research
by Chambers, Robert, Pacey, Ar...
ISBN: 9781853390074
List Price: $17.95
36.
Technology in World Civilization : A Thousand-Year History
by Pacey, Arnold, Bray, Francesca
ISBN: 9780262542463