Smith, M. J. (1981). Soil mechanics (4th ed.). Longman Scientific.
Lua i Stíl Chicago (17ú heag.)Smith, M. J. Soil Mechanics. 4th ed. Essex, England: Longman Scientific, 1981.
Lua MLA (9ú heag.)Smith, M. J. Soil Mechanics. 4th ed. Longman Scientific, 1981.
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