269507 Fletcher, B. G., & Lavan, S. A. (1980). Civil engineering technology 3. Butterworths : Newnes.
Lua i Stíl Chicago (17ú heag.)269507 Fletcher, B. G., agus S. A. Lavan. Civil Engineering Technology 3. Butterworths : Newnes, 1980.
Lua MLA (9ú heag.)269507 Fletcher, B. G., agus S. A. Lavan. Civil Engineering Technology 3. Butterworths : Newnes, 1980.
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