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Biblio
Found 1 results
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Keyword
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manual drilling
and
Author
is
Elson, B.
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1995
B. Elson
and
Shaw, R.
,
“
Technical brief no. 43 : simple drilling methods
”
,
Waterlines, an international journal of water, sanitation and waste
, vol. no. 43, pp. p. 16-18: 1 tab., ill., 1995.
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