Παραπομπή APA

Hofkes, E. H. (1983). Water pumping for rural water supply: Environmental studies, technology and regional planning. Netherlands: [s.n.].

Παραπομπή Chicago Style

Hofkes, E. H. Water Pumping for Rural Water Supply: Environmental Studies, Technology and Regional Planning. Netherlands: [s.n.], 1983.

Παραπομπή MLA

Hofkes, E. H. Water Pumping for Rural Water Supply: Environmental Studies, Technology and Regional Planning. Netherlands: [s.n.], 1983.

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