Yau, Goh Sing.
Laboratory and field testing of handpumps / Goh Sing Yau. - Ottawa : International Development Research Centre, c1985. - 138 p. : ill. ; 25 cm. - IDRC-TS ; 51e . - IDRC-TS (Series) ; 51e. .
Includes abstracts in French and Spanish. Issued also in French under title: Essais en laboratoire et sur le terrain des pompes a main.
Includes bibliographical references.
0889364389
C87-71139-3
Hand pumps--Testing.
621.64 / YAL
Laboratory and field testing of handpumps / Goh Sing Yau. - Ottawa : International Development Research Centre, c1985. - 138 p. : ill. ; 25 cm. - IDRC-TS ; 51e . - IDRC-TS (Series) ; 51e. .
Includes abstracts in French and Spanish. Issued also in French under title: Essais en laboratoire et sur le terrain des pompes a main.
Includes bibliographical references.
0889364389
C87-71139-3
Hand pumps--Testing.
621.64 / YAL