Não informado. (1976). Comments on astrophysics. Gordon and Breach.
Lua i Stíl Chicago (17ú heag.)Não informado. Comments on Astrophysics. New York: Gordon and Breach, 1976.
Lua MLA (8ú heag.)Não informado. Comments on Astrophysics. Gordon and Breach, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.