BOWLES, J. E., & BOWLES, J. E. (1974). Analytical And Computer Methods In Foundation Engineering / Joseph E.bowles. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BOWLES, Joseph E., agus Joseph E. BOWLES. Analytical And Computer Methods In Foundation Engineering / Joseph E.bowles. McGraw-Hill, 1974.
Lua MLA (8ú heag.)BOWLES, Joseph E., agus Joseph E. BOWLES. Analytical And Computer Methods In Foundation Engineering / Joseph E.bowles. McGraw-Hill, 1974.
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