Billings, S. A., Gray, J. O., & Owens, D. H. (1984). Nonlinear system design. London : Peter Peregrinus.
Lua i Stíl Chicago (17ú heag.)Billings, S. A., J. O. Gray, agus D. H. Owens. Nonlinear System Design. London : Peter Peregrinus, 1984.
Lua MLA (9ú heag.)Billings, S. A., et al. Nonlinear System Design. London : Peter Peregrinus, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.