Holtz, R. D. (1989). Treatment of problem foundations for highway embankments. Transportation Research Board, National Research Council.
Lua i Stíl Chicago (17ú heag.)Holtz, R. D. Treatment of Problem Foundations for Highway Embankments. Washington, D.C. (2101 Constitution Ave. N.W., Washington 20418): Transportation Research Board, National Research Council, 1989.
Lua MLA (9ú heag.)Holtz, R. D. Treatment of Problem Foundations for Highway Embankments. Transportation Research Board, National Research Council, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.