Fraenkel, Peter
Windpumps a guide for development workers - London Intermediate Technology Publications 1993 - xi, 156p. ill. 30 cm.
Includes bibliographies
1853391263
Wind pumps.
621.4502 / FRA/1993
Windpumps a guide for development workers - London Intermediate Technology Publications 1993 - xi, 156p. ill. 30 cm.
Includes bibliographies
1853391263
Wind pumps.
621.4502 / FRA/1993