Citazione Stile APA (7a Edizione)

Brebbia, C. A., & Walker, S. (1980). Boundary element techniques in engineering. Newnes-Butterworths.

Citazione stile Chigago Style (17a edizione)

Brebbia, C. A., e Stephen Walker. Boundary Element Techniques in Engineering. Londres: Newnes-Butterworths, 1980.

Citatione MLA (9a ed.)

Brebbia, C. A., e Stephen Walker. Boundary Element Techniques in Engineering. Newnes-Butterworths, 1980.