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Lua i Stíl Chicago (17ú heag.)CROLL, J.G.A. Elements Of Structural Stability J.g.a. Croll And A.c. Walker. Macmillan, 1972.
Lua MLA (8ú heag.)CROLL, J.G.A. Elements Of Structural Stability J.g.a. Croll And A.c. Walker. Macmillan, 1972.
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