Gaya APA

Providing safe drinking water in small systems : technology, operations and economics / edited by Joseph A. Cotruvo, Gunther F. Craun, Nancy Hearne. (1999). : Boca Raton : Lewis Publishers.

Gaya MLA

Providing safe drinking water in small systems : technology, operations and economics / edited by Joseph A. Cotruvo, Gunther F. Craun, Nancy Hearne. . : Boca Raton : Lewis Publishers, 1999. Text.