Berg, D. W., & Duane, D. B. (1968). Effect of particle size and distribution on stability of artificially filled beach, Presque Isle Peninsula, Pennsylvania. U.S. Coastal Engineering Research Center.
Dyfyniad Arddull ChicagoBerg, Dennis W., and David B. Duane. Effect of Particle Size and Distribution on Stability of Artificially Filled Beach, Presque Isle Peninsula, Pennsylvania. [Washington]: U.S. Coastal Engineering Research Center, 1968.
Dyfyniad MLABerg, Dennis W., and David B. Duane. Effect of Particle Size and Distribution on Stability of Artificially Filled Beach, Presque Isle Peninsula, Pennsylvania. U.S. Coastal Engineering Research Center, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.