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Watt,Simon

21 Chain and washer pumps : from the 1958 Peking Agriculture Exhibition / cmpiled b Simon Watt ; with an appendix by John Collett. - - London : Intermediate Technology Publications, 1976 - iii,48, [1]p., 4 p. of plates : ill

cover title : Chinese chain and washer pumps.

Subjects--Topical Terms:
Pumping machinery.

LC Class. No.: TJ900 / W34