Não informado. USSR and eastern europe scientific abstracts. Joint Publications Research Service.
Lua i Stíl Chicago (17ú heag.)Não informado. USSR and Eastern Europe Scientific Abstracts. Arlington, Wash: Joint Publications Research Service.
Lua MLA (8ú heag.)Não informado. USSR and Eastern Europe Scientific Abstracts. Joint Publications Research Service.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.