Não informado. (1980). Science of science. Polish Academy of Sciences.
Lua i Stíl Chicago (17ú heag.)Não informado. Science of Science. Wroclaw, Polonia: Polish Academy of Sciences, 1980.
Lua MLA (8ú heag.)Não informado. Science of Science. Polish Academy of Sciences, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.