Wright, F. B. (1956). Rural water supply and sanitation (2d ed.). Wiley.
Lua i Stíl Chicago (17ú heag.)Wright, Forrest Blythe. Rural Water Supply and Sanitation. 2d ed. New York: Wiley, 1956.
Lua MLA (8ú heag.)Wright, Forrest Blythe. Rural Water Supply and Sanitation. 2d ed. Wiley, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.