BARROWS, H. (1976). Water Power Engineering. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BARROWS, H.K. Water Power Engineering. McGraw-Hill, 1976.
Lua MLA (8ú heag.)BARROWS, H.K. Water Power Engineering. McGraw-Hill, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.