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.
Lua i Stíl Chicago (17ú heag.)Berg, Dennis W., agus 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.
Lua MLA (8ú heag.)Berg, Dennis W., agus 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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.