Kalbermatten, J. M., Julius, D. S., & Gunnerson, C. G. (1980). Appropriate technology for water supply and sanitation: A summary of technical and economic options. World Bank.
Chicago-Zitierstil (17. Ausg.)Kalbermatten, John M., Deanne S. Julius, und Charles G. Gunnerson. Appropriate Technology for Water Supply and Sanitation: A Summary of Technical and Economic Options. Washington, DC: World Bank, 1980.
MLA-Zitierstil (9. Ausg.)Kalbermatten, John M., et al. Appropriate Technology for Water Supply and Sanitation: A Summary of Technical and Economic Options. World Bank, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.