Don, J., & Chisholm, J. (1913). Modern methods of water purification (2d rev. and enl. ed.). Longmans, Green & co.; E. Arnold.
Lua i Stíl Chicago (17ú heag.)Don, John, agus John Chisholm. Modern Methods of Water Purification. 2d rev. and enl. ed. New York, London: Longmans, Green & co.; E. Arnold, 1913.
Lua MLA (8ú heag.)Don, John, agus John Chisholm. Modern Methods of Water Purification. 2d rev. and enl. ed. Longmans, Green & co.; E. Arnold, 1913.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.