Não informado. (1959). Bulletin of the Operations Research Society of America. Operations Research Society of America.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin of the Operations Research Society of America. Baltimore, Md: Operations Research Society of America, 1959.
Lua MLA (8ú heag.)Não informado. Bulletin of the Operations Research Society of America. Operations Research Society of America, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.