Não informado. (1987). Complex Systems. Complex Systems Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Complex Systems. Champaign, Ill: Complex Systems Publications, 1987.
Lua MLA (8ú heag.)Não informado. Complex Systems. Complex Systems Publications, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.