Não informado. (1972). Bulletin of the Section of Logic. Polish Academy of Sciences, Institute of Philosophy and Sociology.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin of the Section of Logic. Warszawa: Polish Academy of Sciences, Institute of Philosophy and Sociology, 1972.
Lua MLA (8ú heag.)Não informado. Bulletin of the Section of Logic. Polish Academy of Sciences, Institute of Philosophy and Sociology, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.