Fraenkel, P., & Fraenkel, P. (1986). Water-pumping devices: A handbook for users and choosers. London, Sydney: Intermediate Technology Publications.
Citación estilo ChicagoFraenkel, Peter, y Peter Fraenkel. Water-pumping Devices: A Handbook for Users and Choosers. London, Sydney: Intermediate Technology Publications, 1986.
Cita MLAFraenkel, Peter, y Peter Fraenkel. Water-pumping Devices: A Handbook for Users and Choosers. London, Sydney: Intermediate Technology Publications, 1986.
Precaución: Estas citas no son 100% exactas.