Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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