Wolff, T. F. (1995). Spreadsheet applications in geotechnical engineering. PWS Publishing.
Lua i Stíl Chicago (17ú heag.)Wolff, Thomas F. Spreadsheet Applications in Geotechnical Engineering. Boston: PWS Publishing, 1995.
Lua MLA (9ú heag.)Wolff, Thomas F. Spreadsheet Applications in Geotechnical Engineering. PWS Publishing, 1995.
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