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2Abastecimiento de agua a la comunidad, la opcion de la bomba manual Abastecimiento de agua a la comunidad, la opcion de la bomba manualby Arlosoroff, S., Tschannerl, G., Grey, D., Journey, W, Karp, A., Langenegger, O., Roche, R.
Published 1988Texto bibliotecaFAO IT -
3by Arlosoroff, S., IBRD, Washington, DC (USA) eng, Tschannerl, G., Grey, D., Journey, W., Karp, A.
Published 1987Texto bibliotecaFAO IT -
4Duckweed aquaculture; a new aquatic farming system for developing countries Duckweed aquaculture; a new aquatic farming system for developing countriesby Journey, W.K., IBRD, Washington, DC (USA). Europe, Middle East, and North Africa Regional Office eng, Skillicorn, P., Spira, W.
Published 1990Texto bibliotecaFAO IT