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Biblio
Found 4 results
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Wal, A. van der
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2010
J. Labas
,
Vuik, R.
, y
van der Wal, A.
,
«
Augering : technical training handbook on affordable manual well drilling
»
, vol. 3. p. 57 p.; tab.; fig.; with technical drawings, 2010.
R. Vuik
y
van der Wal, A.
,
«
Jetting : technical training handbook on affordable manual well drilling
»
, vol. 1. p. 45 p.; tab.; fig.; with technical drawings, 2010.
R. Vuik
,
de Koning, D.
, y
van der Wal, A.
,
«
Percussion : technical training handbook on affordable manual well drilling
»
, vol. 2. p. 50 p.; tab.; fig.; with technical drawings, 2010.
A. van der Wal
,
«
Understanding groundwater and wells in manual drilling : instruction handbook for manual drilling teams on hydro-geology for well drilling, well installation and well development
»
. p. 40 p.; tab.; fig.; photographs, 2010.
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