WILLEMS, N., & LUCAS, W. M. (1968). Matrix analysis for structural engineers. Prentice-Hall International.
Čikaški stil citiranja (17. izdanje)WILLEMS, Nicholas, i William M. LUCAS. Matrix Analysis for Structural Engineers. London: Prentice-Hall International, 1968.
MLA način citiranja (9. izdanje)WILLEMS, Nicholas, i William M. LUCAS. Matrix Analysis for Structural Engineers. Prentice-Hall International, 1968.
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