CARMICHAEL, D. (1987). Engineering queves in construction and mining - D.G. Carmichael. Ellis Harwood Limited.
Lua i Stíl Chicago (17ú heag.)CARMICHAEL, D.G. Engineering Queves in Construction and Mining - D.G. Carmichael. Ellis Harwood Limited, 1987.
Lua MLA (8ú heag.)CARMICHAEL, D.G. Engineering Queves in Construction and Mining - D.G. Carmichael. Ellis Harwood Limited, 1987.
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