Cita APA (7th ed.)

WILLEMS, N., & LUCAS, W. M. (1968). Matrix analysis for structural engineers. Prentice-Hall International.

Cita Chicago (17th ed.)

WILLEMS, Nicholas, i William M. LUCAS. Matrix Analysis for Structural Engineers. London: Prentice-Hall International, 1968.

Cita MLA (9th ed.)

WILLEMS, Nicholas, i William M. LUCAS. Matrix Analysis for Structural Engineers. Prentice-Hall International, 1968.