Watt, S. B., & Wood, W. E. (1979). Hand dug wells and their construction. Intermediate Technology Publications.
Cita Chicago Style (17a ed.)Watt, Simon B., y W. E. Wood. Hand Dug Wells and Their Construction. London: Intermediate Technology Publications, 1979.
Cita MLA (9a ed.)Watt, Simon B., y W. E. Wood. Hand Dug Wells and Their Construction. Intermediate Technology Publications, 1979.
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