Day, R. W. (2006). Foundation Engineering Handbook Design and Construction with the 2006 International Building Code Robert W. Day. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Day, Robert W. Foundation Engineering Handbook Design and Construction with the 2006 International Building Code Robert W. Day. McGraw-Hill, 2006.
Lua MLA (8ú heag.)Day, Robert W. Foundation Engineering Handbook Design and Construction with the 2006 International Building Code Robert W. Day. McGraw-Hill, 2006.
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