White, I. D., Mottershead, D. N., & Harrison, S. J. (1984). Environmental systems: An introductory text. G. Allen & Unwin.
Lua i Stíl Chicago (17ú heag.)White, I. D., D. N. Mottershead, agus S. John Harrison. Environmental Systems: An Introductory Text. London: G. Allen & Unwin, 1984.
Lua MLA (9ú heag.)White, I. D., et al. Environmental Systems: An Introductory Text. G. Allen & Unwin, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.