Berg, D. W. (1966). Factors affecting beach nourishment requirements, Presque Isle Peninsula, Erie, Pennsylvania. U.S. Coastal Engineering Research Center.
Dyfyniad Arddull ChicagoBerg, Dennis W. Factors Affecting Beach Nourishment Requirements, Presque Isle Peninsula, Erie, Pennsylvania. [Washington]: U.S. Coastal Engineering Research Center, 1966.
Dyfyniad MLABerg, Dennis W. Factors Affecting Beach Nourishment Requirements, Presque Isle Peninsula, Erie, Pennsylvania. U.S. Coastal Engineering Research Center, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.