Berg, D. W. (1966). Factors affecting beach nourishment requirements, Presque Isle Peninsula, Erie, Pennsylvania. U.S. Coastal Engineering Research Center.
Lua i Stíl Chicago (17ú heag.)Berg, Dennis W. Factors Affecting Beach Nourishment Requirements, Presque Isle Peninsula, Erie, Pennsylvania. [Washington]: U.S. Coastal Engineering Research Center, 1966.
Lua MLA (8ú heag.)Berg, Dennis W. Factors Affecting Beach Nourishment Requirements, Presque Isle Peninsula, Erie, Pennsylvania. U.S. Coastal Engineering Research Center, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.