HORVATH, J. S. (1995). Geofoam Geosynthetic. Horvath Engineering.
Lua i Stíl Chicago (17ú heag.)HORVATH, John S. Geofoam Geosynthetic. Horvath Engineering, 1995.
Lua MLA (8ú heag.)HORVATH, John S. Geofoam Geosynthetic. Horvath Engineering, 1995.
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