Ahmad, Y. J. (1984). Environmental decision-making. Hodder and Stoughton.
Lua i Stíl Chicago (17ú heag.)Ahmad, Yusuf J. Environmental Decision-making. London: Hodder and Stoughton, 1984.
Lua MLA (9ú heag.)Ahmad, Yusuf J. Environmental Decision-making. Hodder and Stoughton, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.