Sowers, G. F., & Sally, H. L. (1962). Earth and rockfill dam engineering. Asia Pub. House.
Lua i Stíl Chicago (17ú heag.)Sowers, George F., agus Hari Lai Sally. Earth and Rockfill Dam Engineering. Bombay, New York: Asia Pub. House, 1962.
Lua MLA (8ú heag.)Sowers, George F., agus Hari Lai Sally. Earth and Rockfill Dam Engineering. Asia Pub. House, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.