Não informado. (1969). WHO library acquisitions. World Health Organization.
Lua i Stíl Chicago (17ú heag.)Não informado. WHO Library Acquisitions. Geneva, Suíça: World Health Organization, 1969.
Lua MLA (8ú heag.)Não informado. WHO Library Acquisitions. World Health Organization, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.