BIGGS, J. M. (1964). Introduction To Structural Dynamics / John M. Biggs. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BIGGS, John M. Introduction To Structural Dynamics / John M. Biggs. McGraw-Hill, 1964.
Lua MLA (8ú heag.)BIGGS, John M. Introduction To Structural Dynamics / John M. Biggs. McGraw-Hill, 1964.
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