WILLEMS, N., & LUCAS, W. M. (1968). Matrix analysis for structural engineers. Prentice-Hall International.
Chicago-čujuhus (17. p.)WILLEMS, Nicholas, juo William M. LUCAS. Matrix Analysis for Structural Engineers. London: Prentice-Hall International, 1968.
MLA-čujuhus (9. p.)WILLEMS, Nicholas, juo William M. LUCAS. Matrix Analysis for Structural Engineers. Prentice-Hall International, 1968.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.