Kalbermantten, J. M. (1980). Appropriate technology for water supply and sanitation: Technical and economic options. Banco Internacional de Reconstrucción y Fomento.
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Cita Chicago (17th ed.)
Kalbermantten, John M. Appropriate Technology for Water Supply and Sanitation: Technical and Economic Options. Washington, EUA: Banco Internacional de Reconstrucción y Fomento, 1980.
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Cita MLA (9th ed.)
Kalbermantten, John M. Appropriate Technology for Water Supply and Sanitation: Technical and Economic Options. Banco Internacional de Reconstrucción y Fomento, 1980.
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