CROLL, J. (1972). Elements Of Structural Stability / J.g.a. Croll And A.c. Walker. Macmillan.
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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