Hand Dug Wells and Their Construction
by S.B. Watt, W.E. Wood
ISBN 13: 9780903031271
Format: Paperback (254 pages) Publisher: ITDG Publishing Published: 01 Jan 1979
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Ferrocement Water Tanks and their Construction
by Simon Watt
ISBN 13: 9780903031516
Format: Paperback (120 pages) Publisher: ITDG Publishing Published: 01 Jan 1978
A Manual on the Automatic Hydraulic Ram for Pumping Water
by S.B. Watt
ISBN 13: 9780903031158
Format: Paperback (43 pages) Publisher: ITDG Publishing Published: 01 Jan 1975