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Biblio
Found 2 results
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Pfiffner, H.
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2000
K. Wehrle
,
Pfiffner, H.
,
Meuli, C.
, y
Muller, H.
,
Building construction
, vol. no. 3. St. Gallen, Switzerland: SKAT (Swiss Centre for Development Cooperation in Technology and Management), 2000, p. 57 p. : fig., photogr., techn.drwg.
1989
H. Pfiffner
,
«
Summary of the gravity water supply design and hydraulic correspondence course
»
. Sarvodaya Rural Technical Services, Moratuwa, Sri Lanka, p. 47 p.: fig., 1989.
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