Acra, A., jurdi, m., & mu’allem, h. (1990). Water disinfection by solar radiation: Assessment and application. idrc.
Chicago (17e ed.) BronvermeldingAcra, A., m. jurdi, en h. mu’allem. Water Disinfection by Solar Radiation: Assessment and Application. canada: idrc, 1990.
MLA (9e ed.) BronvermeldingAcra, A., et al. Water Disinfection by Solar Radiation: Assessment and Application. idrc, 1990.