Não informado. (2000). Informs. Institute for Operations Research and the Management Sciences.
Lua i Stíl Chicago (17ú heag.)Não informado. Informs. Baltimore, Md: Institute for Operations Research and the Management Sciences, 2000.
Lua MLA (8ú heag.)Não informado. Informs. Institute for Operations Research and the Management Sciences, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.