Não informado. (1989). Discovery and innovations. Academy Science Publishers.
Lua i Stíl Chicago (17ú heag.)Não informado. Discovery and Innovations. Nairobi: Academy Science Publishers, 1989.
Lua MLA (8ú heag.)Não informado. Discovery and Innovations. Academy Science Publishers, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.